21443775

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4027}}^1$

素因数の和:4111

約数の個数: 24

約数和(自身を含む): 35961984

約数和(自身を除く): 14518209

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 4027, 5325, 12081, 20135, 60405, 100675, 285917, 302025, 857751, 1429585, 4288755, 7147925, 21443775]

約数ペア:

[(1, 21443775), (3, 7147925), (5, 4288755), (15, 1429585), (25, 857751), (71, 302025), (75, 285917), (213, 100675), (355, 60405), (1065, 20135), (1775, 12081), (4027, 5325)]