18687928

素因数分解:

$2^3\times 7^1\times {\mathrm{333713}}^1$

素因数の和:333726

約数の個数: 16

約数和(自身を含む): 40045680

約数和(自身を除く): 21357752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 333713, 667426, 1334852, 2335991, 2669704, 4671982, 9343964, 18687928]

約数ペア:

[(1, 18687928), (2, 9343964), (4, 4671982), (7, 2669704), (8, 2335991), (14, 1334852), (28, 667426), (56, 333713)]