21002310686

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{18989431}}^1$

素因数の和:18989519

約数の個数: 16

約数和(自身を含む): 36459709440

約数和(自身を除く): 15457398754

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 18989431, 37978862, 132926017, 265852034, 1500165049, 3000330098, 10501155343, 21002310686]

約数ペア:

[(1, 21002310686), (2, 10501155343), (7, 3000330098), (14, 1500165049), (79, 265852034), (158, 132926017), (553, 37978862), (1106, 18989431)]