20561772

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^2$

素因数の和:77

約数の個数: 162

約数和(自身を含む): 65166276

約数和(自身を除く): 44604504

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 42, 44, 49, 51, 66, 68, 77, 84, 98, 102, 119, 121, 132, 147, 154, 187, 196, 204, 231, 238, 242, 289, 294, 308, 357, 363, 374, 462, 476, 484, 539, 561, 578, 588, 714, 726, 748, 833, 847, 867, 924, 1078, 1122, 1156, 1309, 1428, 1452, 1617, 1666, 1694, 1734, 2023, 2057, 2156, 2244, 2499, 2541, 2618, 3179, 3234, 3332, 3388, 3468, 3927, 4046, 4114, 4998, 5082, 5236, 5929, 6069, 6171, 6358, 6468, 7854, 8092, 8228, 9163, 9537, 9996, 10164, 11858, 12138, 12342, 12716, 14161, 14399, 15708, 17787, 18326, 19074, 22253, 23716, 24276, 24684, 27489, 28322, 28798, 34969, 35574, 36652, 38148, 42483, 43197, 44506, 54978, 56644, 57596, 66759, 69938, 71148, 84966, 86394, 89012, 100793, 104907, 109956, 133518, 139876, 155771, 169932, 172788, 201586, 209814, 244783, 267036, 302379, 311542, 403172, 419628, 467313, 489566, 604758, 623084, 734349, 934626, 979132, 1209516, 1468698, 1713481, 1869252, 2937396, 3426962, 5140443, 6853924, 10280886, 20561772]

約数ペア:

[(1, 20561772), (2, 10280886), (3, 6853924), (4, 5140443), (6, 3426962), (7, 2937396), (11, 1869252), (12, 1713481), (14, 1468698), (17, 1209516), (21, 979132), (22, 934626), (28, 734349), (33, 623084), (34, 604758), (42, 489566), (44, 467313), (49, 419628), (51, 403172), (66, 311542), (68, 302379), (77, 267036), (84, 244783), (98, 209814), (102, 201586), (119, 172788), (121, 169932), (132, 155771), (147, 139876), (154, 133518), (187, 109956), (196, 104907), (204, 100793), (231, 89012), (238, 86394), (242, 84966), (289, 71148), (294, 69938), (308, 66759), (357, 57596), (363, 56644), (374, 54978), (462, 44506), (476, 43197), (484, 42483), (539, 38148), (561, 36652), (578, 35574), (588, 34969), (714, 28798), (726, 28322), (748, 27489), (833, 24684), (847, 24276), (867, 23716), (924, 22253), (1078, 19074), (1122, 18326), (1156, 17787), (1309, 15708), (1428, 14399), (1452, 14161), (1617, 12716), (1666, 12342), (1694, 12138), (1734, 11858), (2023, 10164), (2057, 9996), (2156, 9537), (2244, 9163), (2499, 8228), (2541, 8092), (2618, 7854), (3179, 6468), (3234, 6358), (3332, 6171), (3388, 6069), (3468, 5929), (3927, 5236), (4046, 5082), (4114, 4998)]