217871367

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{2063}}^1$

素因数の和:2227

約数の個数: 32

約数和(自身を含む): 342392832

約数和(自身を除く): 124521465

約数列:

[1, 3, 7, 21, 47, 107, 141, 321, 329, 749, 987, 2063, 2247, 5029, 6189, 14441, 15087, 35203, 43323, 96961, 105609, 220741, 290883, 662223, 678727, 1545187, 2036181, 4635561, 10374827, 31124481, 72623789, 217871367]

約数ペア:

[(1, 217871367), (3, 72623789), (7, 31124481), (21, 10374827), (47, 4635561), (107, 2036181), (141, 1545187), (321, 678727), (329, 662223), (749, 290883), (987, 220741), (2063, 105609), (2247, 96961), (5029, 43323), (6189, 35203), (14441, 15087)]