21184312

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2939}}^1$

素因数の和:3015

約数の個数: 32

約数和(自身を含む): 42865200

約数和(自身を除く): 21680888

約数列:

[1, 2, 4, 8, 17, 34, 53, 68, 106, 136, 212, 424, 901, 1802, 2939, 3604, 5878, 7208, 11756, 23512, 49963, 99926, 155767, 199852, 311534, 399704, 623068, 1246136, 2648039, 5296078, 10592156, 21184312]

約数ペア:

[(1, 21184312), (2, 10592156), (4, 5296078), (8, 2648039), (17, 1246136), (34, 623068), (53, 399704), (68, 311534), (106, 199852), (136, 155767), (212, 99926), (424, 49963), (901, 23512), (1802, 11756), (2939, 7208), (3604, 5878)]