21946729

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5323}}^1$

素因数の和:5380

約数の個数: 16

約数和(自身を含む): 27258880

約数和(自身を除く): 5312151

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5323, 37261, 101137, 165013, 707959, 1155091, 3135247, 21946729]

約数ペア:

[(1, 21946729), (7, 3135247), (19, 1155091), (31, 707959), (133, 165013), (217, 101137), (589, 37261), (4123, 5323)]