21467875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1201}}^1$

素因数の和:1240

約数の個数: 32

約数和(自身を含む): 31502016

約数和(自身を除く): 10034141

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 275, 325, 715, 1201, 1375, 1625, 3575, 6005, 13211, 15613, 17875, 30025, 66055, 78065, 150125, 171743, 330275, 390325, 858715, 1651375, 1951625, 4293575, 21467875]

約数ペア:

[(1, 21467875), (5, 4293575), (11, 1951625), (13, 1651375), (25, 858715), (55, 390325), (65, 330275), (125, 171743), (143, 150125), (275, 78065), (325, 66055), (715, 30025), (1201, 17875), (1375, 15613), (1625, 13211), (3575, 6005)]