20271993

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 34667520

約数和(自身を除く): 14395527

約数列:

[1, 3, 7, 19, 21, 23, 47, 57, 69, 133, 141, 161, 329, 399, 437, 483, 893, 987, 1081, 1311, 2209, 2679, 3059, 3243, 6251, 6627, 7567, 9177, 15463, 18753, 20539, 22701, 41971, 46389, 50807, 61617, 125913, 143773, 152421, 293797, 355649, 431319, 881391, 965333, 1066947, 2895999, 6757331, 20271993]

約数ペア:

[(1, 20271993), (3, 6757331), (7, 2895999), (19, 1066947), (21, 965333), (23, 881391), (47, 431319), (57, 355649), (69, 293797), (133, 152421), (141, 143773), (161, 125913), (329, 61617), (399, 50807), (437, 46389), (483, 41971), (893, 22701), (987, 20539), (1081, 18753), (1311, 15463), (2209, 9177), (2679, 7567), (3059, 6627), (3243, 6251)]