21003436

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6427}}^1$

素因数の和:6493

約数の個数: 24

約数和(自身を含む): 39596480

約数和(自身を除く): 18593044

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6427, 12854, 25708, 122113, 244226, 276361, 488452, 552722, 1105444, 5250859, 10501718, 21003436]

約数ペア:

[(1, 21003436), (2, 10501718), (4, 5250859), (19, 1105444), (38, 552722), (43, 488452), (76, 276361), (86, 244226), (172, 122113), (817, 25708), (1634, 12854), (3268, 6427)]