21022364

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{349}}^1$

素因数の和:438

約数の個数: 36

約数和(自身を含む): 41365800

約数和(自身を除く): 20343436

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 349, 407, 698, 814, 1369, 1396, 1628, 2738, 3839, 5476, 7678, 12913, 15059, 15356, 25826, 30118, 51652, 60236, 142043, 284086, 477781, 568172, 955562, 1911124, 5255591, 10511182, 21022364]

約数ペア:

[(1, 21022364), (2, 10511182), (4, 5255591), (11, 1911124), (22, 955562), (37, 568172), (44, 477781), (74, 284086), (148, 142043), (349, 60236), (407, 51652), (698, 30118), (814, 25826), (1369, 15356), (1396, 15059), (1628, 12913), (2738, 7678), (3839, 5476)]