21815706

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7687}}^1$

素因数の和:7746

約数の個数: 32

約数和(自身を含む): 48711168

約数和(自身を除く): 26895462

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 7687, 15374, 23061, 46122, 84557, 169114, 253671, 330541, 507342, 661082, 991623, 1983246, 3635951, 7271902, 10907853, 21815706]

約数ペア:

[(1, 21815706), (2, 10907853), (3, 7271902), (6, 3635951), (11, 1983246), (22, 991623), (33, 661082), (43, 507342), (66, 330541), (86, 253671), (129, 169114), (258, 84557), (473, 46122), (946, 23061), (1419, 15374), (2838, 7687)]