20731023747

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17319151}}^1$

素因数の和:17319183

約数の個数: 24

約数和(自身を含む): 36023836160

約数和(自身を除く): 15292812413

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17319151, 51957453, 121234057, 155872359, 329063869, 363702171, 987191607, 1091106513, 2303447083, 2961574821, 6910341249, 20731023747]

約数ペア:

[(1, 20731023747), (3, 6910341249), (7, 2961574821), (9, 2303447083), (19, 1091106513), (21, 987191607), (57, 363702171), (63, 329063869), (133, 155872359), (171, 121234057), (399, 51957453), (1197, 17319151)]