21985125

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{2549}}^1$

素因数の和:2590

約数の個数: 32

約数和(自身を含む): 38188800

約数和(自身を除く): 16203675

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 345, 375, 575, 1725, 2549, 2875, 7647, 8625, 12745, 38235, 58627, 63725, 175881, 191175, 293135, 318625, 879405, 955875, 1465675, 4397025, 7328375, 21985125]

約数ペア:

[(1, 21985125), (3, 7328375), (5, 4397025), (15, 1465675), (23, 955875), (25, 879405), (69, 318625), (75, 293135), (115, 191175), (125, 175881), (345, 63725), (375, 58627), (575, 38235), (1725, 12745), (2549, 8625), (2875, 7647)]