21566818

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1669}}^1$

素因数の和:1762

約数の個数: 32

約数和(自身を含む): 40400640

約数和(自身を除く): 18833822

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1669, 1846, 3338, 6461, 11683, 12922, 21697, 23366, 43394, 118499, 151879, 236998, 303758, 829493, 1540487, 1658986, 3080974, 10783409, 21566818]

約数ペア:

[(1, 21566818), (2, 10783409), (7, 3080974), (13, 1658986), (14, 1540487), (26, 829493), (71, 303758), (91, 236998), (142, 151879), (182, 118499), (497, 43394), (923, 23366), (994, 21697), (1669, 12922), (1846, 11683), (3338, 6461)]