28275723

素因数分解:

$3^7\times 7^1\times {\mathrm{1847}}^1$

素因数の和:1875

約数の個数: 32

約数和(自身を含む): 48491520

約数和(自身を除く): 20215797

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 1847, 2187, 5103, 5541, 12929, 15309, 16623, 38787, 49869, 116361, 149607, 349083, 448821, 1047249, 1346463, 3141747, 4039389, 9425241, 28275723]

約数ペア:

[(1, 28275723), (3, 9425241), (7, 4039389), (9, 3141747), (21, 1346463), (27, 1047249), (63, 448821), (81, 349083), (189, 149607), (243, 116361), (567, 49869), (729, 38787), (1701, 16623), (1847, 15309), (2187, 12929), (5103, 5541)]