128408721

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1699}}^1$

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 202368000

約数和(自身を除く): 73959279

約数列:

[1, 3, 7, 21, 59, 61, 177, 183, 413, 427, 1239, 1281, 1699, 3599, 5097, 10797, 11893, 25193, 35679, 75579, 100241, 103639, 300723, 310917, 701687, 725473, 2105061, 2176419, 6114701, 18344103, 42802907, 128408721]

約数ペア:

[(1, 128408721), (3, 42802907), (7, 18344103), (21, 6114701), (59, 2176419), (61, 2105061), (177, 725473), (183, 701687), (413, 310917), (427, 300723), (1239, 103639), (1281, 100241), (1699, 75579), (3599, 35679), (5097, 25193), (10797, 11893)]