20931570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21143}}^1$

素因数の和:21167

約数の個数: 48

約数和(自身を含む): 59372352

約数和(自身を除く): 38440782

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21143, 42286, 63429, 105715, 126858, 190287, 211430, 232573, 317145, 380574, 465146, 634290, 697719, 951435, 1162865, 1395438, 1902870, 2093157, 2325730, 3488595, 4186314, 6977190, 10465785, 20931570]

約数ペア:

[(1, 20931570), (2, 10465785), (3, 6977190), (5, 4186314), (6, 3488595), (9, 2325730), (10, 2093157), (11, 1902870), (15, 1395438), (18, 1162865), (22, 951435), (30, 697719), (33, 634290), (45, 465146), (55, 380574), (66, 317145), (90, 232573), (99, 211430), (110, 190287), (165, 126858), (198, 105715), (330, 63429), (495, 42286), (990, 21143)]