20916490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6949}}^1$

素因数の和:7006

約数の個数: 32

約数和(自身を含む): 44035200

約数和(自身を除く): 23118710

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 6949, 13898, 34745, 48643, 69490, 97286, 243215, 298807, 486430, 597614, 1494035, 2091649, 2988070, 4183298, 10458245, 20916490]

約数ペア:

[(1, 20916490), (2, 10458245), (5, 4183298), (7, 2988070), (10, 2091649), (14, 1494035), (35, 597614), (43, 486430), (70, 298807), (86, 243215), (215, 97286), (301, 69490), (430, 48643), (602, 34745), (1505, 13898), (3010, 6949)]