20871036238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{646843}}^1$

素因数の和:646948

約数の個数: 32

約数和(自身を含む): 36187040736

約数和(自身を除く): 15316004498

約数列:

[1, 2, 13, 17, 26, 34, 73, 146, 221, 442, 949, 1241, 1898, 2482, 16133, 32266, 646843, 1293686, 8408959, 10996331, 16817918, 21992662, 47219539, 94439078, 142952303, 285904606, 613854007, 802732163, 1227708014, 1605464326, 10435518119, 20871036238]

約数ペア:

[(1, 20871036238), (2, 10435518119), (13, 1605464326), (17, 1227708014), (26, 802732163), (34, 613854007), (73, 285904606), (146, 142952303), (221, 94439078), (442, 47219539), (949, 21992662), (1241, 16817918), (1898, 10996331), (2482, 8408959), (16133, 1293686), (32266, 646843)]