221285955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{31189}}^1$

素因数の和:31251

約数の個数: 32

約数和(自身を含む): 395239680

約数和(自身を除く): 173953725

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 7095, 31189, 93567, 155945, 343079, 467835, 1029237, 1341127, 1715395, 4023381, 5146185, 6705635, 14752397, 20116905, 44257191, 73761985, 221285955]

約数ペア:

[(1, 221285955), (3, 73761985), (5, 44257191), (11, 20116905), (15, 14752397), (33, 6705635), (43, 5146185), (55, 4023381), (129, 1715395), (165, 1341127), (215, 1029237), (473, 467835), (645, 343079), (1419, 155945), (2365, 93567), (7095, 31189)]