21546512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1459}}^1$

素因数の和:1551

約数の個数: 40

約数和(自身を含む): 45622080

約数和(自身を除く): 24075568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1459, 1846, 2918, 3692, 5836, 7384, 11672, 14768, 18967, 23344, 37934, 75868, 103589, 151736, 207178, 303472, 414356, 828712, 1346657, 1657424, 2693314, 5386628, 10773256, 21546512]

約数ペア:

[(1, 21546512), (2, 10773256), (4, 5386628), (8, 2693314), (13, 1657424), (16, 1346657), (26, 828712), (52, 414356), (71, 303472), (104, 207178), (142, 151736), (208, 103589), (284, 75868), (568, 37934), (923, 23344), (1136, 18967), (1459, 14768), (1846, 11672), (2918, 7384), (3692, 5836)]