28438215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3557}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 50210496

約数和(自身を除く): 21772281

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2665, 3557, 7995, 10671, 17785, 46241, 53355, 138723, 145837, 231205, 437511, 693615, 729185, 1895881, 2187555, 5687643, 9479405, 28438215]

約数ペア:

[(1, 28438215), (3, 9479405), (5, 5687643), (13, 2187555), (15, 1895881), (39, 729185), (41, 693615), (65, 437511), (123, 231205), (195, 145837), (205, 138723), (533, 53355), (615, 46241), (1599, 17785), (2665, 10671), (3557, 7995)]