21092175

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7211}}^1$

素因数の和:7240

約数の個数: 36

約数和(自身を含む): 40690104

約数和(自身を除く): 19597929

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7211, 21633, 36055, 64899, 93743, 108165, 180275, 281229, 324495, 468715, 540825, 843687, 1406145, 1622475, 2343575, 4218435, 7030725, 21092175]

約数ペア:

[(1, 21092175), (3, 7030725), (5, 4218435), (9, 2343575), (13, 1622475), (15, 1406145), (25, 843687), (39, 540825), (45, 468715), (65, 324495), (75, 281229), (117, 180275), (195, 108165), (225, 93743), (325, 64899), (585, 36055), (975, 21633), (2925, 7211)]