20951931

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6977}}^1$

素因数の和:7011

約数の個数: 32

約数和(自身を含む): 37513728

約数和(自身を除く): 16561797

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 6977, 20931, 48839, 76747, 90701, 146517, 230241, 272103, 537229, 634907, 997711, 1611687, 1904721, 2993133, 6983977, 20951931]

約数ペア:

[(1, 20951931), (3, 6983977), (7, 2993133), (11, 1904721), (13, 1611687), (21, 997711), (33, 634907), (39, 537229), (77, 272103), (91, 230241), (143, 146517), (231, 90701), (273, 76747), (429, 48839), (1001, 20931), (3003, 6977)]