21303656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1039}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 43804800

約数和(自身を除く): 22501144

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 233, 466, 932, 1039, 1864, 2078, 2563, 4156, 5126, 8312, 10252, 11429, 20504, 22858, 45716, 91432, 242087, 484174, 968348, 1936696, 2662957, 5325914, 10651828, 21303656]

約数ペア:

[(1, 21303656), (2, 10651828), (4, 5325914), (8, 2662957), (11, 1936696), (22, 968348), (44, 484174), (88, 242087), (233, 91432), (466, 45716), (932, 22858), (1039, 20504), (1864, 11429), (2078, 10252), (2563, 8312), (4156, 5126)]