28130067

素因数分解:

$3^2\times 7^2\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:528

約数の個数: 36

約数和(自身を含む): 47643336

約数和(自身を除く): 19513269

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 227, 281, 441, 681, 843, 1589, 1967, 2043, 2529, 4767, 5901, 11123, 13769, 14301, 17703, 33369, 41307, 63787, 100107, 123921, 191361, 446509, 574083, 1339527, 3125563, 4018581, 9376689, 28130067]

約数ペア:

[(1, 28130067), (3, 9376689), (7, 4018581), (9, 3125563), (21, 1339527), (49, 574083), (63, 446509), (147, 191361), (227, 123921), (281, 100107), (441, 63787), (681, 41307), (843, 33369), (1589, 17703), (1967, 14301), (2043, 13769), (2529, 11123), (4767, 5901)]