990291218

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2281777}}^1$

素因数の和:2281817

約数の個数: 16

約数和(自身を含む): 1752405504

約数和(自身を除く): 762114286

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 2281777, 4563554, 15972439, 31944878, 70735087, 141470174, 495145609, 990291218]

約数ペア:

[(1, 990291218), (2, 495145609), (7, 141470174), (14, 70735087), (31, 31944878), (62, 15972439), (217, 4563554), (434, 2281777)]