28791423

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 45204480

約数和(自身を除く): 16413057

約数列:

[1, 3, 9, 23, 27, 69, 71, 207, 213, 621, 639, 653, 1633, 1917, 1959, 4899, 5877, 14697, 15019, 17631, 44091, 45057, 46363, 135171, 139089, 405513, 417267, 1066349, 1251801, 3199047, 9597141, 28791423]

約数ペア:

[(1, 28791423), (3, 9597141), (9, 3199047), (23, 1251801), (27, 1066349), (69, 417267), (71, 405513), (207, 139089), (213, 135171), (621, 46363), (639, 45057), (653, 44091), (1633, 17631), (1917, 15019), (1959, 14697), (4899, 5877)]