21073115

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 30979584

約数和(自身を除く): 9906469

約数列:

[1, 5, 7, 17, 35, 85, 107, 119, 331, 535, 595, 749, 1655, 1819, 2317, 3745, 5627, 9095, 11585, 12733, 28135, 35417, 39389, 63665, 177085, 196945, 247919, 602089, 1239595, 3010445, 4214623, 21073115]

約数ペア:

[(1, 21073115), (5, 4214623), (7, 3010445), (17, 1239595), (35, 602089), (85, 247919), (107, 196945), (119, 177085), (331, 63665), (535, 39389), (595, 35417), (749, 28135), (1655, 12733), (1819, 11585), (2317, 9095), (3745, 5627)]