20847917139

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58397527}}^1$

素因数の和:58397554

約数の個数: 16

約数和(自身を含む): 33636976128

約数和(自身を除く): 12789058989

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58397527, 175192581, 408782689, 992757959, 1226348067, 2978273877, 6949305713, 20847917139]

約数ペア:

[(1, 20847917139), (3, 6949305713), (7, 2978273877), (17, 1226348067), (21, 992757959), (51, 408782689), (119, 175192581), (357, 58397527)]