20496515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7691}}^1$

素因数の和:7750

約数の個数: 16

約数和(自身を含む): 27137376

約数和(自身を除く): 6640861

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7691, 38455, 99983, 315331, 499915, 1576655, 4099303, 20496515]

約数ペア:

[(1, 20496515), (5, 4099303), (13, 1576655), (41, 499915), (65, 315331), (205, 99983), (533, 38455), (2665, 7691)]