221640573

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1213}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 378651456

約数和(自身を除く): 157010883

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 113, 147, 231, 339, 539, 791, 1213, 1243, 1617, 2373, 3639, 3729, 5537, 8491, 8701, 13343, 16611, 25473, 26103, 40029, 59437, 60907, 93401, 137069, 178311, 182721, 280203, 411207, 653807, 959483, 1507759, 1961421, 2878449, 4523277, 6716381, 10554313, 20149143, 31662939, 73880191, 221640573]

約数ペア:

[(1, 221640573), (3, 73880191), (7, 31662939), (11, 20149143), (21, 10554313), (33, 6716381), (49, 4523277), (77, 2878449), (113, 1961421), (147, 1507759), (231, 959483), (339, 653807), (539, 411207), (791, 280203), (1213, 182721), (1243, 178311), (1617, 137069), (2373, 93401), (3639, 60907), (3729, 59437), (5537, 40029), (8491, 26103), (8701, 25473), (13343, 16611)]