21552475

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1151}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 30855168

約数和(自身を除く): 9302693

約数列:

[1, 5, 7, 25, 35, 107, 175, 535, 749, 1151, 2675, 3745, 5755, 8057, 18725, 28775, 40285, 123157, 201425, 615785, 862099, 3078925, 4310495, 21552475]

約数ペア:

[(1, 21552475), (5, 4310495), (7, 3078925), (25, 862099), (35, 615785), (107, 201425), (175, 123157), (535, 40285), (749, 28775), (1151, 18725), (2675, 8057), (3745, 5755)]