21907125

素因数分解:

$3^3\times 5^3\times {\mathrm{6491}}^1$

素因数の和:6515

約数の個数: 32

約数和(自身を含む): 40510080

約数和(自身を除く): 18602955

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 6491, 19473, 32455, 58419, 97365, 162275, 175257, 292095, 486825, 811375, 876285, 1460475, 2434125, 4381425, 7302375, 21907125]

約数ペア:

[(1, 21907125), (3, 7302375), (5, 4381425), (9, 2434125), (15, 1460475), (25, 876285), (27, 811375), (45, 486825), (75, 292095), (125, 175257), (135, 162275), (225, 97365), (375, 58419), (675, 32455), (1125, 19473), (3375, 6491)]