21132904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11953}}^1$

素因数の和:11989

約数の個数: 32

約数和(自身を含む): 45186120

約数和(自身を除く): 24053216

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11953, 23906, 47812, 95624, 155389, 203201, 310778, 406402, 621556, 812804, 1243112, 1625608, 2641613, 5283226, 10566452, 21132904]

約数ペア:

[(1, 21132904), (2, 10566452), (4, 5283226), (8, 2641613), (13, 1625608), (17, 1243112), (26, 812804), (34, 621556), (52, 406402), (68, 310778), (104, 203201), (136, 155389), (221, 95624), (442, 47812), (884, 23906), (1768, 11953)]