21111896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202999}}^1$

素因数の和:203018

約数の個数: 16

約数和(自身を含む): 42630000

約数和(自身を除く): 21518104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202999, 405998, 811996, 1623992, 2638987, 5277974, 10555948, 21111896]

約数ペア:

[(1, 21111896), (2, 10555948), (4, 5277974), (8, 2638987), (13, 1623992), (26, 811996), (52, 405998), (104, 202999)]