19218633

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{983}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 31488000

約数和(自身を除く): 12269367

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 983, 1029, 2793, 2949, 6517, 6881, 18677, 19551, 20643, 48167, 56031, 130739, 144501, 337169, 392217, 915173, 1011507, 2745519, 6406211, 19218633]

約数ペア:

[(1, 19218633), (3, 6406211), (7, 2745519), (19, 1011507), (21, 915173), (49, 392217), (57, 337169), (133, 144501), (147, 130739), (343, 56031), (399, 48167), (931, 20643), (983, 19551), (1029, 18677), (2793, 6881), (2949, 6517)]