17722719

素因数分解:

$3^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:199

約数の個数: 56

約数和(自身を含む): 31898112

約数和(自身を除く): 14175393

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 151, 161, 189, 207, 243, 453, 483, 567, 621, 729, 1057, 1359, 1449, 1701, 1863, 3171, 3473, 4077, 4347, 5103, 5589, 9513, 10419, 12231, 13041, 16767, 24311, 28539, 31257, 36693, 39123, 72933, 85617, 93771, 110079, 117369, 218799, 256851, 281313, 656397, 770553, 843939, 1969191, 2531817, 5907573, 17722719]

約数ペア:

[(1, 17722719), (3, 5907573), (7, 2531817), (9, 1969191), (21, 843939), (23, 770553), (27, 656397), (63, 281313), (69, 256851), (81, 218799), (151, 117369), (161, 110079), (189, 93771), (207, 85617), (243, 72933), (453, 39123), (483, 36693), (567, 31257), (621, 28539), (729, 24311), (1057, 16767), (1359, 13041), (1449, 12231), (1701, 10419), (1863, 9513), (3171, 5589), (3473, 5103), (4077, 4347)]