21440284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3571}}^1$

素因数の和:3673

約数の個数: 24

約数和(自身を含む): 40006400

約数和(自身を除く): 18566116

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3571, 6004, 7142, 14284, 67849, 135698, 271396, 282109, 564218, 1128436, 5360071, 10720142, 21440284]

約数ペア:

[(1, 21440284), (2, 10720142), (4, 5360071), (19, 1128436), (38, 564218), (76, 282109), (79, 271396), (158, 135698), (316, 67849), (1501, 14284), (3002, 7142), (3571, 6004)]