21111130

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72797}}^1$

素因数の和:72833

約数の個数: 16

約数和(自身を含む): 39310920

約数和(自身を除く): 18199790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72797, 145594, 363985, 727970, 2111113, 4222226, 10555565, 21111130]

約数ペア:

[(1, 21111130), (2, 10555565), (5, 4222226), (10, 2111113), (29, 727970), (58, 363985), (145, 145594), (290, 72797)]