21488325

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12457}}^1$

素因数の和:12493

約数の個数: 24

約数和(自身を含む): 37075008

約数和(自身を除く): 15586683

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12457, 37371, 62285, 186855, 286511, 311425, 859533, 934275, 1432555, 4297665, 7162775, 21488325]

約数ペア:

[(1, 21488325), (3, 7162775), (5, 4297665), (15, 1432555), (23, 934275), (25, 859533), (69, 311425), (75, 286511), (115, 186855), (345, 62285), (575, 37371), (1725, 12457)]