18902835

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 39029760

約数和(自身を除く): 20126925

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 83, 105, 135, 189, 241, 249, 315, 415, 581, 723, 747, 945, 1205, 1245, 1687, 1743, 2169, 2241, 2905, 3615, 3735, 5061, 5229, 6507, 8435, 8715, 10845, 11205, 15183, 15687, 20003, 25305, 26145, 32535, 45549, 60009, 75915, 78435, 100015, 140021, 180027, 227745, 300045, 420063, 540081, 700105, 900135, 1260189, 2100315, 2700405, 3780567, 6300945, 18902835]

約数ペア:

[(1, 18902835), (3, 6300945), (5, 3780567), (7, 2700405), (9, 2100315), (15, 1260189), (21, 900135), (27, 700105), (35, 540081), (45, 420063), (63, 300045), (83, 227745), (105, 180027), (135, 140021), (189, 100015), (241, 78435), (249, 75915), (315, 60009), (415, 45549), (581, 32535), (723, 26145), (747, 25305), (945, 20003), (1205, 15687), (1245, 15183), (1687, 11205), (1743, 10845), (2169, 8715), (2241, 8435), (2905, 6507), (3615, 5229), (3735, 5061)]