20807202821

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{3541}}^1$

素因数の和:3765

約数の個数: 32

約数和(自身を含む): 22741340160

約数和(自身を除く): 1934137339

約数列:

[1, 31, 37, 47, 109, 1147, 1457, 1739, 3379, 3541, 4033, 5123, 53909, 109771, 125023, 131017, 158813, 166427, 189551, 385969, 4061527, 5159237, 5876081, 6157799, 11965039, 14280853, 18140543, 190891769, 442706443, 562356833, 671200091, 20807202821]

約数ペア:

[(1, 20807202821), (31, 671200091), (37, 562356833), (47, 442706443), (109, 190891769), (1147, 18140543), (1457, 14280853), (1739, 11965039), (3379, 6157799), (3541, 5876081), (4033, 5159237), (5123, 4061527), (53909, 385969), (109771, 189551), (125023, 166427), (131017, 158813)]