21752824

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 42393600

約数和(自身を除く): 20640776

約数列:

[1, 2, 4, 8, 31, 62, 124, 239, 248, 367, 478, 734, 956, 1468, 1912, 2936, 7409, 11377, 14818, 22754, 29636, 45508, 59272, 87713, 91016, 175426, 350852, 701704, 2719103, 5438206, 10876412, 21752824]

約数ペア:

[(1, 21752824), (2, 10876412), (4, 5438206), (8, 2719103), (31, 701704), (62, 350852), (124, 175426), (239, 91016), (248, 87713), (367, 59272), (478, 45508), (734, 29636), (956, 22754), (1468, 14818), (1912, 11377), (2936, 7409)]