2021025008

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{7430239}}^1$

素因数の和:7430264

約数の個数: 20

約数和(自身を含む): 4146073920

約数和(自身を除く): 2125048912

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 7430239, 14860478, 29720956, 59441912, 118883824, 126314063, 252628126, 505256252, 1010512504, 2021025008]

約数ペア:

[(1, 2021025008), (2, 1010512504), (4, 505256252), (8, 252628126), (16, 126314063), (17, 118883824), (34, 59441912), (68, 29720956), (136, 14860478), (272, 7430239)]