21242018

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 17707102

約数列:

[1, 2, 7, 14, 23, 41, 46, 82, 161, 287, 322, 574, 943, 1609, 1886, 3218, 6601, 11263, 13202, 22526, 37007, 65969, 74014, 131938, 259049, 461783, 518098, 923566, 1517287, 3034574, 10621009, 21242018]

約数ペア:

[(1, 21242018), (2, 10621009), (7, 3034574), (14, 1517287), (23, 923566), (41, 518098), (46, 461783), (82, 259049), (161, 131938), (287, 74014), (322, 65969), (574, 37007), (943, 22526), (1609, 13202), (1886, 11263), (3218, 6601)]