28129185

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{12757}}^1$

素因数の和:12782

約数の個数: 36

約数和(自身を含む): 56722068

約数和(自身を除く): 28592883

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 12757, 38271, 63785, 89299, 114813, 191355, 267897, 446495, 574065, 625093, 803691, 1339485, 1875279, 3125465, 4018455, 5625837, 9376395, 28129185]

約数ペア:

[(1, 28129185), (3, 9376395), (5, 5625837), (7, 4018455), (9, 3125465), (15, 1875279), (21, 1339485), (35, 803691), (45, 625093), (49, 574065), (63, 446495), (105, 267897), (147, 191355), (245, 114813), (315, 89299), (441, 63785), (735, 38271), (2205, 12757)]