21561010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3067}}^1$

素因数の和:3130

約数の個数: 32

約数和(自身を含む): 41970240

約数和(自身を除く): 20409230

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 3067, 3515, 6134, 7030, 15335, 30670, 58273, 113479, 116546, 226958, 291365, 567395, 582730, 1134790, 2156101, 4312202, 10780505, 21561010]

約数ペア:

[(1, 21561010), (2, 10780505), (5, 4312202), (10, 2156101), (19, 1134790), (37, 582730), (38, 567395), (74, 291365), (95, 226958), (185, 116546), (190, 113479), (370, 58273), (703, 30670), (1406, 15335), (3067, 7030), (3515, 6134)]