21912795

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8543}}^1$

素因数の和:8576

約数の個数: 32

約数和(自身を含む): 41011200

約数和(自身を除く): 19098405

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8543, 25629, 42715, 76887, 128145, 162317, 230661, 384435, 486951, 811585, 1153305, 1460853, 2434755, 4382559, 7304265, 21912795]

約数ペア:

[(1, 21912795), (3, 7304265), (5, 4382559), (9, 2434755), (15, 1460853), (19, 1153305), (27, 811585), (45, 486951), (57, 384435), (95, 230661), (135, 162317), (171, 128145), (285, 76887), (513, 42715), (855, 25629), (2565, 8543)]