199491405

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{309289}}^1$

素因数の和:309340

約数の個数: 16

約数和(自身を含む): 326610240

約数和(自身を除く): 127118835

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 309289, 927867, 1546445, 4639335, 13299427, 39898281, 66497135, 199491405]

約数ペア:

[(1, 199491405), (3, 66497135), (5, 39898281), (15, 13299427), (43, 4639335), (129, 1546445), (215, 927867), (645, 309289)]