21463625

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 28753920

約数和(自身を除く): 7290295

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 191, 725, 775, 899, 955, 3625, 3875, 4495, 4775, 5539, 5921, 22475, 23875, 27695, 29605, 112375, 138475, 148025, 171709, 692375, 740125, 858545, 4292725, 21463625]

約数ペア:

[(1, 21463625), (5, 4292725), (25, 858545), (29, 740125), (31, 692375), (125, 171709), (145, 148025), (155, 138475), (191, 112375), (725, 29605), (775, 27695), (899, 23875), (955, 22475), (3625, 5921), (3875, 5539), (4495, 4775)]