28320273

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 40

約数和(自身を含む): 44466048

約数和(自身を除く): 16145775

約数列:

[1, 3, 9, 27, 43, 47, 81, 129, 141, 173, 387, 423, 519, 1161, 1269, 1557, 2021, 3483, 3807, 4671, 6063, 7439, 8131, 14013, 18189, 22317, 24393, 54567, 66951, 73179, 163701, 200853, 219537, 349633, 602559, 658611, 1048899, 3146697, 9440091, 28320273]

約数ペア:

[(1, 28320273), (3, 9440091), (9, 3146697), (27, 1048899), (43, 658611), (47, 602559), (81, 349633), (129, 219537), (141, 200853), (173, 163701), (387, 73179), (423, 66951), (519, 54567), (1161, 24393), (1269, 22317), (1557, 18189), (2021, 14013), (3483, 8131), (3807, 7439), (4671, 6063)]