20210938684

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1\times {\mathrm{2063}}^1$

素因数の和:2227

約数の個数: 72

約数和(自身を含む): 38237036544

約数和(自身を除く): 18026097860

約数列:

[1, 2, 4, 31, 41, 47, 62, 82, 94, 124, 164, 188, 1271, 1457, 1681, 1927, 2063, 2542, 2914, 3362, 3854, 4126, 5084, 5828, 6724, 7708, 8252, 52111, 59737, 63953, 79007, 84583, 96961, 104222, 119474, 127906, 158014, 169166, 193922, 208444, 238948, 255812, 316028, 338332, 387844, 2449217, 2622073, 3005791, 3467903, 3975401, 4898434, 5244146, 6011582, 6935806, 7950802, 9796868, 10488292, 12023164, 13871612, 15901604, 107504993, 123237431, 162991441, 215009986, 246474862, 325982882, 430019972, 492949724, 651965764, 5052734671, 10105469342, 20210938684]

約数ペア:

[(1, 20210938684), (2, 10105469342), (4, 5052734671), (31, 651965764), (41, 492949724), (47, 430019972), (62, 325982882), (82, 246474862), (94, 215009986), (124, 162991441), (164, 123237431), (188, 107504993), (1271, 15901604), (1457, 13871612), (1681, 12023164), (1927, 10488292), (2063, 9796868), (2542, 7950802), (2914, 6935806), (3362, 6011582), (3854, 5244146), (4126, 4898434), (5084, 3975401), (5828, 3467903), (6724, 3005791), (7708, 2622073), (8252, 2449217), (52111, 387844), (59737, 338332), (63953, 316028), (79007, 255812), (84583, 238948), (96961, 208444), (104222, 193922), (119474, 169166), (127906, 158014)]