638862021

素因数分解:

$3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{30091}}^1$

素因数の和:30441

約数の個数: 24

約数和(自身を含む): 1057793984

約数和(自身を除く): 418931963

約数列:

[1, 3, 7, 9, 21, 63, 337, 1011, 2359, 3033, 7077, 21231, 30091, 90273, 210637, 270819, 631911, 1895733, 10140667, 30422001, 70984669, 91266003, 212954007, 638862021]

約数ペア:

[(1, 638862021), (3, 212954007), (7, 91266003), (9, 70984669), (21, 30422001), (63, 10140667), (337, 1895733), (1011, 631911), (2359, 270819), (3033, 210637), (7077, 90273), (21231, 30091)]