18468835

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{89}}^1$

素因数の和:137

約数の個数: 48

約数和(自身を含む): 28728000

約数和(自身を除く): 10259165

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 89, 121, 245, 343, 385, 445, 539, 605, 623, 847, 979, 1715, 2695, 3115, 3773, 4235, 4361, 4895, 5929, 6853, 10769, 18865, 21805, 29645, 30527, 34265, 41503, 47971, 53845, 75383, 152635, 207515, 239855, 335797, 376915, 527681, 1678985, 2638405, 3693767, 18468835]

約数ペア:

[(1, 18468835), (5, 3693767), (7, 2638405), (11, 1678985), (35, 527681), (49, 376915), (55, 335797), (77, 239855), (89, 207515), (121, 152635), (245, 75383), (343, 53845), (385, 47971), (445, 41503), (539, 34265), (605, 30527), (623, 29645), (847, 21805), (979, 18865), (1715, 10769), (2695, 6853), (3115, 5929), (3773, 4895), (4235, 4361)]