20913332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 42964992

約数和(自身を除く): 22051660

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 73, 146, 187, 292, 374, 383, 748, 766, 803, 1241, 1532, 1606, 2482, 3212, 4213, 4964, 6511, 8426, 13022, 13651, 16852, 26044, 27302, 27959, 54604, 55918, 71621, 111836, 143242, 286484, 307549, 475303, 615098, 950606, 1230196, 1901212, 5228333, 10456666, 20913332]

約数ペア:

[(1, 20913332), (2, 10456666), (4, 5228333), (11, 1901212), (17, 1230196), (22, 950606), (34, 615098), (44, 475303), (68, 307549), (73, 286484), (146, 143242), (187, 111836), (292, 71621), (374, 55918), (383, 54604), (748, 27959), (766, 27302), (803, 26044), (1241, 16852), (1532, 13651), (1606, 13022), (2482, 8426), (3212, 6511), (4213, 4964)]