212920239

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{27329}}^1$

素因数の和:27399

約数の個数: 24

約数和(自身を含む): 336486960

約数和(自身を除く): 123566721

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 7791, 27329, 81987, 191303, 573909, 1339121, 1448437, 4017363, 4345311, 10139059, 30417177, 70973413, 212920239]

約数ペア:

[(1, 212920239), (3, 70973413), (7, 30417177), (21, 10139059), (49, 4345311), (53, 4017363), (147, 1448437), (159, 1339121), (371, 573909), (1113, 191303), (2597, 81987), (7791, 27329)]