19891630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2699}}^1$

素因数の和:2784

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 19765970

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 110, 134, 335, 670, 737, 1474, 2699, 3685, 5398, 7370, 13495, 26990, 29689, 59378, 148445, 180833, 296890, 361666, 904165, 1808330, 1989163, 3978326, 9945815, 19891630]

約数ペア:

[(1, 19891630), (2, 9945815), (5, 3978326), (10, 1989163), (11, 1808330), (22, 904165), (55, 361666), (67, 296890), (110, 180833), (134, 148445), (335, 59378), (670, 29689), (737, 26990), (1474, 13495), (2699, 7370), (3685, 5398)]