21071544

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67537}}^1$

素因数の和:67559

約数の個数: 32

約数和(自身を含む): 56731920

約数和(自身を除く): 35660376

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67537, 135074, 202611, 270148, 405222, 540296, 810444, 877981, 1620888, 1755962, 2633943, 3511924, 5267886, 7023848, 10535772, 21071544]

約数ペア:

[(1, 21071544), (2, 10535772), (3, 7023848), (4, 5267886), (6, 3511924), (8, 2633943), (12, 1755962), (13, 1620888), (24, 877981), (26, 810444), (39, 540296), (52, 405222), (78, 270148), (104, 202611), (156, 135074), (312, 67537)]