20533905

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7243}}^1$

素因数の和:7267

約数の個数: 40

約数和(自身を含む): 42073152

約数和(自身を除く): 21539247

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7243, 21729, 36215, 50701, 65187, 108645, 152103, 195561, 253505, 325935, 456309, 586683, 760515, 977805, 1368927, 2281545, 2933415, 4106781, 6844635, 20533905]

約数ペア:

[(1, 20533905), (3, 6844635), (5, 4106781), (7, 2933415), (9, 2281545), (15, 1368927), (21, 977805), (27, 760515), (35, 586683), (45, 456309), (63, 325935), (81, 253505), (105, 195561), (135, 152103), (189, 108645), (315, 65187), (405, 50701), (567, 36215), (945, 21729), (2835, 7243)]