21998675

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1597}}^1$

素因数の和:1655

約数の個数: 24

約数和(自身を含む): 29722800

約数和(自身を除く): 7724125

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1597, 2755, 7985, 13775, 30343, 39925, 46313, 151715, 231565, 758575, 879947, 1157825, 4399735, 21998675]

約数ペア:

[(1, 21998675), (5, 4399735), (19, 1157825), (25, 879947), (29, 758575), (95, 231565), (145, 151715), (475, 46313), (551, 39925), (725, 30343), (1597, 13775), (2755, 7985)]