20899528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11821}}^1$

素因数の和:11857

約数の個数: 32

約数和(自身を含む): 44687160

約数和(自身を除く): 23787632

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11821, 23642, 47284, 94568, 153673, 200957, 307346, 401914, 614692, 803828, 1229384, 1607656, 2612441, 5224882, 10449764, 20899528]

約数ペア:

[(1, 20899528), (2, 10449764), (4, 5224882), (8, 2612441), (13, 1607656), (17, 1229384), (26, 803828), (34, 614692), (52, 401914), (68, 307346), (104, 200957), (136, 153673), (221, 94568), (442, 47284), (884, 23642), (1768, 11821)]