21090974

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8297}}^1$

素因数の和:8371

約数の個数: 16

約数和(自身を含む): 33457536

約数和(自身を除く): 12366562

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 8297, 16594, 257207, 340177, 514414, 680354, 10545487, 21090974]

約数ペア:

[(1, 21090974), (2, 10545487), (31, 680354), (41, 514414), (62, 340177), (82, 257207), (1271, 16594), (2542, 8297)]