20371725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8231}}^1$

素因数の和:8258

約数の個数: 36

約数和(自身を含む): 39809952

約数和(自身を除く): 19438227

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8231, 24693, 41155, 74079, 90541, 123465, 205775, 271623, 370395, 452705, 617325, 814869, 1358115, 1851975, 2263525, 4074345, 6790575, 20371725]

約数ペア:

[(1, 20371725), (3, 6790575), (5, 4074345), (9, 2263525), (11, 1851975), (15, 1358115), (25, 814869), (33, 617325), (45, 452705), (55, 370395), (75, 271623), (99, 205775), (165, 123465), (225, 90541), (275, 74079), (495, 41155), (825, 24693), (2475, 8231)]