20199751957

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1\times {\mathrm{12281}}^1$

素因数の和:12861

約数の個数: 32

約数和(自身を含む): 25849974528

約数和(自身を除く): 5650222571

約数列:

[1, 7, 11, 41, 77, 287, 451, 521, 3157, 3647, 5731, 12281, 21361, 40117, 85967, 135091, 149527, 234971, 503521, 945637, 1644797, 3524647, 5538731, 6398401, 38771117, 44788807, 70382411, 262334441, 492676877, 1836341087, 2885678851, 20199751957]

約数ペア:

[(1, 20199751957), (7, 2885678851), (11, 1836341087), (41, 492676877), (77, 262334441), (287, 70382411), (451, 44788807), (521, 38771117), (3157, 6398401), (3647, 5538731), (5731, 3524647), (12281, 1644797), (21361, 945637), (40117, 503521), (85967, 234971), (135091, 149527)]