19908356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1097}}^1$

素因数の和:1463

約数の個数: 24

約数和(自身を含む): 37661400

約数和(自身を除く): 17753044

約数列:

[1, 2, 4, 13, 26, 52, 349, 698, 1097, 1396, 2194, 4388, 4537, 9074, 14261, 18148, 28522, 57044, 382853, 765706, 1531412, 4977089, 9954178, 19908356]

約数ペア:

[(1, 19908356), (2, 9954178), (4, 4977089), (13, 1531412), (26, 765706), (52, 382853), (349, 57044), (698, 28522), (1097, 18148), (1396, 14261), (2194, 9074), (4388, 4537)]