21303295

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1483}}^1$

素因数の和:1531

約数の個数: 24

約数和(自身を含む): 29329776

約数和(自身を除く): 8026481

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1483, 2873, 7415, 14365, 19279, 25211, 96395, 126055, 250627, 327743, 1253135, 1638715, 4260659, 21303295]

約数ペア:

[(1, 21303295), (5, 4260659), (13, 1638715), (17, 1253135), (65, 327743), (85, 250627), (169, 126055), (221, 96395), (845, 25211), (1105, 19279), (1483, 14365), (2873, 7415)]