20401398

素因数分解:

$2^1\times 3^2\times {\mathrm{227}}^1\times {\mathrm{4993}}^1$

素因数の和:5228

約数の個数: 24

約数和(自身を含む): 44406648

約数和(自身を除く): 24005250

約数列:

[1, 2, 3, 6, 9, 18, 227, 454, 681, 1362, 2043, 4086, 4993, 9986, 14979, 29958, 44937, 89874, 1133411, 2266822, 3400233, 6800466, 10200699, 20401398]

約数ペア:

[(1, 20401398), (2, 10200699), (3, 6800466), (6, 3400233), (9, 2266822), (18, 1133411), (227, 89874), (454, 44937), (681, 29958), (1362, 14979), (2043, 9986), (4086, 4993)]