21531472

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11909}}^1$

素因数の和:12030

約数の個数: 20

約数和(自身を含む): 42089940

約数和(自身を除く): 20558468

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11909, 23818, 47636, 95272, 190544, 1345717, 2691434, 5382868, 10765736, 21531472]

約数ペア:

[(1, 21531472), (2, 10765736), (4, 5382868), (8, 2691434), (16, 1345717), (113, 190544), (226, 95272), (452, 47636), (904, 23818), (1808, 11909)]