28173255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2339}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 49870080

約数和(自身を除く): 21696825

約数列:

[1, 3, 5, 11, 15, 33, 55, 73, 165, 219, 365, 803, 1095, 2339, 2409, 4015, 7017, 11695, 12045, 25729, 35085, 77187, 128645, 170747, 385935, 512241, 853735, 1878217, 2561205, 5634651, 9391085, 28173255]

約数ペア:

[(1, 28173255), (3, 9391085), (5, 5634651), (11, 2561205), (15, 1878217), (33, 853735), (55, 512241), (73, 385935), (165, 170747), (219, 128645), (365, 77187), (803, 35085), (1095, 25729), (2339, 12045), (2409, 11695), (4015, 7017)]