19286787

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 28182000

約数和(自身を除く): 8895213

約数列:

[1, 3, 13, 39, 109, 169, 327, 349, 507, 1047, 1417, 4251, 4537, 13611, 18421, 38041, 55263, 58981, 114123, 176943, 494533, 1483599, 6428929, 19286787]

約数ペア:

[(1, 19286787), (3, 6428929), (13, 1483599), (39, 494533), (109, 176943), (169, 114123), (327, 58981), (349, 55263), (507, 38041), (1047, 18421), (1417, 13611), (4251, 4537)]