213796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 421344

約数和(自身を除く): 207548

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 113, 172, 226, 452, 473, 946, 1243, 1892, 2486, 4859, 4972, 9718, 19436, 53449, 106898, 213796]

約数ペア:

[(1, 213796), (2, 106898), (4, 53449), (11, 19436), (22, 9718), (43, 4972), (44, 4859), (86, 2486), (113, 1892), (172, 1243), (226, 946), (452, 473)]