207817491

素因数分解:

$3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{223}}^2$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 319699200

約数和(自身を除く): 111881709

約数列:

[1, 3, 7, 21, 199, 223, 597, 669, 1393, 1561, 4179, 4683, 44377, 49729, 133131, 149187, 310639, 348103, 931917, 1044309, 9896071, 29688213, 69272497, 207817491]

約数ペア:

[(1, 207817491), (3, 69272497), (7, 29688213), (21, 9896071), (199, 1044309), (223, 931917), (597, 348103), (669, 310639), (1393, 149187), (1561, 133131), (4179, 49729), (4683, 44377)]