216702405

素因数分解:

$3^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4003}}^1$

素因数の和:4418

約数の個数: 32

約数和(自身を含む): 386305920

約数和(自身を除く): 169603515

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 401, 1203, 2005, 3609, 4003, 6015, 10827, 12009, 18045, 20015, 36027, 54135, 60045, 108081, 180135, 540405, 1605203, 4815609, 8026015, 14446827, 24078045, 43340481, 72234135, 216702405]

約数ペア:

[(1, 216702405), (3, 72234135), (5, 43340481), (9, 24078045), (15, 14446827), (27, 8026015), (45, 4815609), (135, 1605203), (401, 540405), (1203, 180135), (2005, 108081), (3609, 60045), (4003, 54135), (6015, 36027), (10827, 20015), (12009, 18045)]