20791816

素因数分解:

$2^3\times {\mathrm{17}}^3\times {\mathrm{23}}^2$

素因数の和:103

約数の個数: 48

約数和(自身を含む): 43299900

約数和(自身を除く): 22508084

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 289, 391, 529, 578, 782, 1058, 1156, 1564, 2116, 2312, 3128, 4232, 4913, 6647, 8993, 9826, 13294, 17986, 19652, 26588, 35972, 39304, 53176, 71944, 112999, 152881, 225998, 305762, 451996, 611524, 903992, 1223048, 2598977, 5197954, 10395908, 20791816]

約数ペア:

[(1, 20791816), (2, 10395908), (4, 5197954), (8, 2598977), (17, 1223048), (23, 903992), (34, 611524), (46, 451996), (68, 305762), (92, 225998), (136, 152881), (184, 112999), (289, 71944), (391, 53176), (529, 39304), (578, 35972), (782, 26588), (1058, 19652), (1156, 17986), (1564, 13294), (2116, 9826), (2312, 8993), (3128, 6647), (4232, 4913)]