21508875

素因数分解:

$3^3\times 5^3\times {\mathrm{6373}}^1$

素因数の和:6397

約数の個数: 32

約数和(自身を含む): 39773760

約数和(自身を除く): 18264885

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 6373, 19119, 31865, 57357, 95595, 159325, 172071, 286785, 477975, 796625, 860355, 1433925, 2389875, 4301775, 7169625, 21508875]

約数ペア:

[(1, 21508875), (3, 7169625), (5, 4301775), (9, 2389875), (15, 1433925), (25, 860355), (27, 796625), (45, 477975), (75, 286785), (125, 172071), (135, 159325), (225, 95595), (375, 57357), (675, 31865), (1125, 19119), (3375, 6373)]