21525530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 43006464

約数和(自身を除く): 21480934

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 169, 235, 271, 338, 470, 542, 611, 845, 1222, 1355, 1690, 2710, 3055, 3523, 6110, 7046, 7943, 12737, 15886, 17615, 25474, 35230, 39715, 45799, 63685, 79430, 91598, 127370, 165581, 228995, 331162, 457990, 827905, 1655810, 2152553, 4305106, 10762765, 21525530]

約数ペア:

[(1, 21525530), (2, 10762765), (5, 4305106), (10, 2152553), (13, 1655810), (26, 827905), (47, 457990), (65, 331162), (94, 228995), (130, 165581), (169, 127370), (235, 91598), (271, 79430), (338, 63685), (470, 45799), (542, 39715), (611, 35230), (845, 25474), (1222, 17615), (1355, 15886), (1690, 12737), (2710, 7943), (3055, 7046), (3523, 6110)]