28701351

素因数分解:

$3^3\times 7^1\times {\mathrm{181}}^1\times {\mathrm{839}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 48921600

約数和(自身を除く): 20220249

約数列:

[1, 3, 7, 9, 21, 27, 63, 181, 189, 543, 839, 1267, 1629, 2517, 3801, 4887, 5873, 7551, 11403, 17619, 22653, 34209, 52857, 151859, 158571, 455577, 1063013, 1366731, 3189039, 4100193, 9567117, 28701351]

約数ペア:

[(1, 28701351), (3, 9567117), (7, 4100193), (9, 3189039), (21, 1366731), (27, 1063013), (63, 455577), (181, 158571), (189, 151859), (543, 52857), (839, 34209), (1267, 22653), (1629, 17619), (2517, 11403), (3801, 7551), (4887, 5873)]