19813255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{971}}^1$

素因数の和:1047

約数の個数: 32

約数和(自身を含む): 30233088

約数和(自身を除く): 10419833

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 971, 1855, 2915, 4081, 4855, 6797, 10681, 20405, 33985, 51463, 53405, 74767, 257315, 360241, 373835, 566093, 1801205, 2830465, 3962651, 19813255]

約数ペア:

[(1, 19813255), (5, 3962651), (7, 2830465), (11, 1801205), (35, 566093), (53, 373835), (55, 360241), (77, 257315), (265, 74767), (371, 53405), (385, 51463), (583, 33985), (971, 20405), (1855, 10681), (2915, 6797), (4081, 4855)]