21994065

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{827}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 17352495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 827, 985, 1773, 2481, 2955, 4135, 5319, 7443, 8865, 12405, 22329, 26595, 37215, 111645, 162919, 488757, 814595, 1466271, 2443785, 4398813, 7331355, 21994065]

約数ペア:

[(1, 21994065), (3, 7331355), (5, 4398813), (9, 2443785), (15, 1466271), (27, 814595), (45, 488757), (135, 162919), (197, 111645), (591, 37215), (827, 26595), (985, 22329), (1773, 12405), (2481, 8865), (2955, 7443), (4135, 5319)]