19926205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7477}}^1$

素因数の和:7536

約数の個数: 16

約数和(自身を含む): 26382384

約数和(自身を除く): 6456179

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7477, 37385, 97201, 306557, 486005, 1532785, 3985241, 19926205]

約数ペア:

[(1, 19926205), (5, 3985241), (13, 1532785), (41, 486005), (65, 306557), (205, 97201), (533, 37385), (2665, 7477)]