20959071

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52529}}^1$

素因数の和:52558

約数の個数: 16

約数和(自身を含む): 33619200

約数和(自身を除く): 12660129

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52529, 157587, 367703, 998051, 1103109, 2994153, 6986357, 20959071]

約数ペア:

[(1, 20959071), (3, 6986357), (7, 2994153), (19, 1103109), (21, 998051), (57, 367703), (133, 157587), (399, 52529)]