20821126212

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1\times {\mathrm{809}}^1$

素因数の和:1226

約数の個数: 144

約数和(自身を含む): 56043187200

約数和(自身を除く): 35222060988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 191, 197, 228, 342, 382, 394, 573, 591, 684, 764, 788, 809, 1146, 1182, 1618, 1719, 1773, 2292, 2364, 2427, 3236, 3438, 3546, 3629, 3743, 4854, 6876, 7092, 7258, 7281, 7486, 9708, 10887, 11229, 14516, 14562, 14972, 15371, 21774, 22458, 29124, 30742, 32661, 33687, 37627, 43548, 44916, 46113, 61484, 65322, 67374, 75254, 92226, 112881, 130644, 134748, 138339, 150508, 154519, 159373, 184452, 225762, 276678, 309038, 318746, 338643, 451524, 463557, 478119, 553356, 618076, 637492, 677286, 714913, 927114, 956238, 1354572, 1390671, 1429826, 1434357, 1854228, 1912476, 2144739, 2781342, 2859652, 2868714, 2935861, 3028087, 4289478, 5562684, 5737428, 5871722, 6056174, 6434217, 8578956, 8807583, 9084261, 11743444, 12112348, 12868434, 17615166, 18168522, 25736868, 26422749, 27252783, 30440243, 35230332, 36337044, 52845498, 54505566, 60880486, 91320729, 105690996, 109011132, 121760972, 182641458, 273962187, 365282916, 547924374, 578364617, 1095848748, 1156729234, 1735093851, 2313458468, 3470187702, 5205281553, 6940375404, 10410563106, 20821126212]

約数ペア:

[(1, 20821126212), (2, 10410563106), (3, 6940375404), (4, 5205281553), (6, 3470187702), (9, 2313458468), (12, 1735093851), (18, 1156729234), (19, 1095848748), (36, 578364617), (38, 547924374), (57, 365282916), (76, 273962187), (114, 182641458), (171, 121760972), (191, 109011132), (197, 105690996), (228, 91320729), (342, 60880486), (382, 54505566), (394, 52845498), (573, 36337044), (591, 35230332), (684, 30440243), (764, 27252783), (788, 26422749), (809, 25736868), (1146, 18168522), (1182, 17615166), (1618, 12868434), (1719, 12112348), (1773, 11743444), (2292, 9084261), (2364, 8807583), (2427, 8578956), (3236, 6434217), (3438, 6056174), (3546, 5871722), (3629, 5737428), (3743, 5562684), (4854, 4289478), (6876, 3028087), (7092, 2935861), (7258, 2868714), (7281, 2859652), (7486, 2781342), (9708, 2144739), (10887, 1912476), (11229, 1854228), (14516, 1434357), (14562, 1429826), (14972, 1390671), (15371, 1354572), (21774, 956238), (22458, 927114), (29124, 714913), (30742, 677286), (32661, 637492), (33687, 618076), (37627, 553356), (43548, 478119), (44916, 463557), (46113, 451524), (61484, 338643), (65322, 318746), (67374, 309038), (75254, 276678), (92226, 225762), (112881, 184452), (130644, 159373), (134748, 154519), (138339, 150508)]