212045547

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{142217}}^1$

素因数の和:142298

約数の個数: 16

約数和(自身を含む): 327670272

約数和(自身を除く): 115624725

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 142217, 426651, 995519, 2986557, 10097407, 30292221, 70681849, 212045547]

約数ペア:

[(1, 212045547), (3, 70681849), (7, 30292221), (21, 10097407), (71, 2986557), (213, 995519), (497, 426651), (1491, 142217)]