21111372

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18917}}^1$

素因数の和:18958

約数の個数: 36

約数和(自身を含む): 55089216

約数和(自身を除く): 33977844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18917, 37834, 56751, 75668, 113502, 170253, 227004, 340506, 586427, 681012, 1172854, 1759281, 2345708, 3518562, 5277843, 7037124, 10555686, 21111372]

約数ペア:

[(1, 21111372), (2, 10555686), (3, 7037124), (4, 5277843), (6, 3518562), (9, 2345708), (12, 1759281), (18, 1172854), (31, 681012), (36, 586427), (62, 340506), (93, 227004), (124, 170253), (186, 113502), (279, 75668), (372, 56751), (558, 37834), (1116, 18917)]