21325900

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{1277}}^1$

素因数の和:1458

約数の個数: 36

約数和(自身を含む): 46590768

約数和(自身を除く): 25264868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 334, 668, 835, 1277, 1670, 2554, 3340, 4175, 5108, 6385, 8350, 12770, 16700, 25540, 31925, 63850, 127700, 213259, 426518, 853036, 1066295, 2132590, 4265180, 5331475, 10662950, 21325900]

約数ペア:

[(1, 21325900), (2, 10662950), (4, 5331475), (5, 4265180), (10, 2132590), (20, 1066295), (25, 853036), (50, 426518), (100, 213259), (167, 127700), (334, 63850), (668, 31925), (835, 25540), (1277, 16700), (1670, 12770), (2554, 8350), (3340, 6385), (4175, 5108)]