20724496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5861}}^1$

素因数の和:5899

約数の個数: 40

約数和(自身を含む): 45793944

約数和(自身を除く): 25069448

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5861, 11722, 23444, 46888, 76193, 93776, 99637, 152386, 199274, 304772, 398548, 609544, 797096, 1219088, 1295281, 1594192, 2590562, 5181124, 10362248, 20724496]

約数ペア:

[(1, 20724496), (2, 10362248), (4, 5181124), (8, 2590562), (13, 1594192), (16, 1295281), (17, 1219088), (26, 797096), (34, 609544), (52, 398548), (68, 304772), (104, 199274), (136, 152386), (208, 99637), (221, 93776), (272, 76193), (442, 46888), (884, 23444), (1768, 11722), (3536, 5861)]