28771515

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14869}}^1$

素因数の和:14923

約数の個数: 24

約数和(自身を含む): 51033840

約数和(自身を除く): 22262325

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 14869, 44607, 74345, 133821, 223035, 639367, 669105, 1918101, 3196835, 5754303, 9590505, 28771515]

約数ペア:

[(1, 28771515), (3, 9590505), (5, 5754303), (9, 3196835), (15, 1918101), (43, 669105), (45, 639367), (129, 223035), (215, 133821), (387, 74345), (645, 44607), (1935, 14869)]