21045384

素因数分解:

$2^3\times 3^2\times {\mathrm{239}}^1\times {\mathrm{1223}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 57283200

約数和(自身を除く): 36237816

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 239, 478, 717, 956, 1223, 1434, 1912, 2151, 2446, 2868, 3669, 4302, 4892, 5736, 7338, 8604, 9784, 11007, 14676, 17208, 22014, 29352, 44028, 88056, 292297, 584594, 876891, 1169188, 1753782, 2338376, 2630673, 3507564, 5261346, 7015128, 10522692, 21045384]

約数ペア:

[(1, 21045384), (2, 10522692), (3, 7015128), (4, 5261346), (6, 3507564), (8, 2630673), (9, 2338376), (12, 1753782), (18, 1169188), (24, 876891), (36, 584594), (72, 292297), (239, 88056), (478, 44028), (717, 29352), (956, 22014), (1223, 17208), (1434, 14676), (1912, 11007), (2151, 9784), (2446, 8604), (2868, 7338), (3669, 5736), (4302, 4892)]