81437853

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{4229}}^1$

素因数の和:4377

約数の個数: 24

約数和(自身を含む): 127306080

約数和(自身を除く): 45868227

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 2751, 4229, 6419, 12687, 19257, 29603, 88809, 207221, 553999, 621663, 1661997, 3877993, 11633979, 27145951, 81437853]

約数ペア:

[(1, 81437853), (3, 27145951), (7, 11633979), (21, 3877993), (49, 1661997), (131, 621663), (147, 553999), (393, 207221), (917, 88809), (2751, 29603), (4229, 19257), (6419, 12687)]