19498995

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3359}}^1$

素因数の和:3416

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 15982605

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3359, 5805, 10077, 16795, 30231, 50385, 90693, 144437, 151155, 433311, 453465, 722185, 1299933, 2166555, 3899799, 6499665, 19498995]

約数ペア:

[(1, 19498995), (3, 6499665), (5, 3899799), (9, 2166555), (15, 1299933), (27, 722185), (43, 453465), (45, 433311), (129, 151155), (135, 144437), (215, 90693), (387, 50385), (645, 30231), (1161, 16795), (1935, 10077), (3359, 5805)]