20753655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1499}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15534345

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 1499, 2769, 4497, 4615, 7495, 13845, 19487, 22485, 58461, 97435, 106429, 292305, 319287, 532145, 1383577, 1596435, 4150731, 6917885, 20753655]

約数ペア:

[(1, 20753655), (3, 6917885), (5, 4150731), (13, 1596435), (15, 1383577), (39, 532145), (65, 319287), (71, 292305), (195, 106429), (213, 97435), (355, 58461), (923, 22485), (1065, 19487), (1499, 13845), (2769, 7495), (4497, 4615)]