20361978

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:460

約数の個数: 96

約数和(自身を含む): 56189952

約数和(自身を除く): 35827974

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 62, 63, 78, 91, 93, 117, 126, 182, 186, 217, 234, 273, 279, 401, 403, 434, 546, 558, 651, 802, 806, 819, 1203, 1209, 1302, 1638, 1953, 2406, 2418, 2807, 2821, 3609, 3627, 3906, 5213, 5614, 5642, 7218, 7254, 8421, 8463, 10426, 12431, 15639, 16842, 16926, 24862, 25263, 25389, 31278, 36491, 37293, 46917, 50526, 50778, 72982, 74586, 87017, 93834, 109473, 111879, 161603, 174034, 218946, 223758, 261051, 323206, 328419, 484809, 522102, 656838, 783153, 969618, 1131221, 1454427, 1566306, 2262442, 2908854, 3393663, 6787326, 10180989, 20361978]

約数ペア:

[(1, 20361978), (2, 10180989), (3, 6787326), (6, 3393663), (7, 2908854), (9, 2262442), (13, 1566306), (14, 1454427), (18, 1131221), (21, 969618), (26, 783153), (31, 656838), (39, 522102), (42, 484809), (62, 328419), (63, 323206), (78, 261051), (91, 223758), (93, 218946), (117, 174034), (126, 161603), (182, 111879), (186, 109473), (217, 93834), (234, 87017), (273, 74586), (279, 72982), (401, 50778), (403, 50526), (434, 46917), (546, 37293), (558, 36491), (651, 31278), (802, 25389), (806, 25263), (819, 24862), (1203, 16926), (1209, 16842), (1302, 15639), (1638, 12431), (1953, 10426), (2406, 8463), (2418, 8421), (2807, 7254), (2821, 7218), (3609, 5642), (3627, 5614), (3906, 5213)]