20181315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 40891392

約数和(自身を除く): 20710077

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 101, 105, 165, 173, 231, 303, 385, 505, 519, 707, 865, 1111, 1155, 1211, 1515, 1903, 2121, 2595, 3333, 3535, 3633, 5555, 5709, 6055, 7777, 9515, 10605, 13321, 16665, 17473, 18165, 23331, 28545, 38885, 39963, 52419, 66605, 87365, 116655, 122311, 192203, 199815, 262095, 366933, 576609, 611555, 961015, 1345421, 1834665, 2883045, 4036263, 6727105, 20181315]

約数ペア:

[(1, 20181315), (3, 6727105), (5, 4036263), (7, 2883045), (11, 1834665), (15, 1345421), (21, 961015), (33, 611555), (35, 576609), (55, 366933), (77, 262095), (101, 199815), (105, 192203), (165, 122311), (173, 116655), (231, 87365), (303, 66605), (385, 52419), (505, 39963), (519, 38885), (707, 28545), (865, 23331), (1111, 18165), (1155, 17473), (1211, 16665), (1515, 13321), (1903, 10605), (2121, 9515), (2595, 7777), (3333, 6055), (3535, 5709), (3633, 5555)]