21809590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{599}}^1$

素因数の和:948

約数の個数: 32

約数和(自身を含む): 43027200

約数和(自身を除く): 21217610

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 331, 599, 662, 1198, 1655, 2995, 3310, 3641, 5990, 6589, 7282, 13178, 18205, 32945, 36410, 65890, 198269, 396538, 991345, 1982690, 2180959, 4361918, 10904795, 21809590]

約数ペア:

[(1, 21809590), (2, 10904795), (5, 4361918), (10, 2180959), (11, 1982690), (22, 991345), (55, 396538), (110, 198269), (331, 65890), (599, 36410), (662, 32945), (1198, 18205), (1655, 13178), (2995, 7282), (3310, 6589), (3641, 5990)]