21085388615

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1\times {\mathrm{65563}}^1$

素因数の和:66190

約数の個数: 16

約数和(自身を含む): 25547930496

約数和(自身を除く): 4462541881

約数列:

[1, 5, 131, 491, 655, 2455, 64321, 65563, 321605, 327815, 8588753, 32191433, 42943765, 160957165, 4217077723, 21085388615]

約数ペア:

[(1, 21085388615), (5, 4217077723), (131, 160957165), (491, 42943765), (655, 32191433), (2455, 8588753), (64321, 327815), (65563, 321605)]