845397

素因数分解:

$3^5\times 7^2\times {\mathrm{71}}^1$

素因数の和:100

約数の個数: 36

約数和(自身を含む): 1493856

約数和(自身を除く): 648459

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 81, 147, 189, 213, 243, 441, 497, 567, 639, 1323, 1491, 1701, 1917, 3479, 3969, 4473, 5751, 10437, 11907, 13419, 17253, 31311, 40257, 93933, 120771, 281799, 845397]

約数ペア:

[(1, 845397), (3, 281799), (7, 120771), (9, 93933), (21, 40257), (27, 31311), (49, 17253), (63, 13419), (71, 11907), (81, 10437), (147, 5751), (189, 4473), (213, 3969), (243, 3479), (441, 1917), (497, 1701), (567, 1491), (639, 1323)]