20829105

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1451}}^1$

素因数の和:1502

約数の個数: 48

約数和(自身を含む): 40772160

約数和(自身を除く): 19943055

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1451, 1595, 2871, 4353, 4785, 7255, 13059, 14355, 15961, 21765, 42079, 47883, 65295, 79805, 126237, 143649, 210395, 239415, 378711, 462869, 631185, 718245, 1388607, 1893555, 2314345, 4165821, 6943035, 20829105]

約数ペア:

[(1, 20829105), (3, 6943035), (5, 4165821), (9, 2314345), (11, 1893555), (15, 1388607), (29, 718245), (33, 631185), (45, 462869), (55, 378711), (87, 239415), (99, 210395), (145, 143649), (165, 126237), (261, 79805), (319, 65295), (435, 47883), (495, 42079), (957, 21765), (1305, 15961), (1451, 14355), (1595, 13059), (2871, 7255), (4353, 4785)]