21098343

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{523}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 34407936

約数和(自身を除く): 13309593

約数列:

[1, 3, 7, 17, 21, 51, 113, 119, 339, 357, 523, 791, 1569, 1921, 2373, 3661, 5763, 8891, 10983, 13447, 26673, 40341, 59099, 62237, 177297, 186711, 413693, 1004683, 1241079, 3014049, 7032781, 21098343]

約数ペア:

[(1, 21098343), (3, 7032781), (7, 3014049), (17, 1241079), (21, 1004683), (51, 413693), (113, 186711), (119, 177297), (339, 62237), (357, 59099), (523, 40341), (791, 26673), (1569, 13447), (1921, 10983), (2373, 8891), (3661, 5763)]