20981536

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{38569}}^1$

素因数の和:38596

約数の個数: 24

約数和(自身を含む): 43738380

約数和(自身を除く): 22756844

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 38569, 77138, 154276, 308552, 617104, 655673, 1234208, 1311346, 2622692, 5245384, 10490768, 20981536]

約数ペア:

[(1, 20981536), (2, 10490768), (4, 5245384), (8, 2622692), (16, 1311346), (17, 1234208), (32, 655673), (34, 617104), (68, 308552), (136, 154276), (272, 77138), (544, 38569)]