28723545

素因数分解:

$3^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{809}}^1$

素因数の和:1086

約数の個数: 32

約数和(自身を含む): 51321600

約数和(自身を除く): 22598055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 263, 789, 809, 1315, 2367, 2427, 3945, 4045, 7101, 7281, 11835, 12135, 21843, 35505, 36405, 109215, 212767, 638301, 1063835, 1914903, 3191505, 5744709, 9574515, 28723545]

約数ペア:

[(1, 28723545), (3, 9574515), (5, 5744709), (9, 3191505), (15, 1914903), (27, 1063835), (45, 638301), (135, 212767), (263, 109215), (789, 36405), (809, 35505), (1315, 21843), (2367, 12135), (2427, 11835), (3945, 7281), (4045, 7101)]