20092905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 40120704

約数和(自身を除く): 20027799

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 227, 281, 315, 681, 843, 1135, 1405, 1589, 1967, 2043, 2529, 3405, 4215, 4767, 5901, 7945, 9835, 10215, 12645, 14301, 17703, 23835, 29505, 63787, 71505, 88515, 191361, 318935, 446509, 574083, 956805, 1339527, 2232545, 2870415, 4018581, 6697635, 20092905]

約数ペア:

[(1, 20092905), (3, 6697635), (5, 4018581), (7, 2870415), (9, 2232545), (15, 1339527), (21, 956805), (35, 574083), (45, 446509), (63, 318935), (105, 191361), (227, 88515), (281, 71505), (315, 63787), (681, 29505), (843, 23835), (1135, 17703), (1405, 14301), (1589, 12645), (1967, 10215), (2043, 9835), (2529, 7945), (3405, 5901), (4215, 4767)]