28182105

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{12781}}^1$

素因数の和:12806

約数の個数: 36

約数和(自身を含む): 56828772

約数和(自身を除く): 28646667

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 12781, 38343, 63905, 89467, 115029, 191715, 268401, 447335, 575145, 626269, 805203, 1342005, 1878807, 3131345, 4026015, 5636421, 9394035, 28182105]

約数ペア:

[(1, 28182105), (3, 9394035), (5, 5636421), (7, 4026015), (9, 3131345), (15, 1878807), (21, 1342005), (35, 805203), (45, 626269), (49, 575145), (63, 447335), (105, 268401), (147, 191715), (245, 115029), (315, 89467), (441, 63905), (735, 38343), (2205, 12781)]