20605485

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 34232832

約数和(自身を除く): 13627347

約数列:

[1, 3, 5, 15, 37, 111, 137, 185, 271, 411, 555, 685, 813, 1355, 2055, 4065, 5069, 10027, 15207, 25345, 30081, 37127, 50135, 76035, 111381, 150405, 185635, 556905, 1373699, 4121097, 6868495, 20605485]

約数ペア:

[(1, 20605485), (3, 6868495), (5, 4121097), (15, 1373699), (37, 556905), (111, 185635), (137, 150405), (185, 111381), (271, 76035), (411, 50135), (555, 37127), (685, 30081), (813, 25345), (1355, 15207), (2055, 10027), (4065, 5069)]