21325100

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1993}}^1$

素因数の和:2114

約数の個数: 36

約数和(自身を含む): 46731384

約数和(自身を除く): 25406284

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 1993, 2140, 2675, 3986, 5350, 7972, 9965, 10700, 19930, 39860, 49825, 99650, 199300, 213251, 426502, 853004, 1066255, 2132510, 4265020, 5331275, 10662550, 21325100]

約数ペア:

[(1, 21325100), (2, 10662550), (4, 5331275), (5, 4265020), (10, 2132510), (20, 1066255), (25, 853004), (50, 426502), (100, 213251), (107, 199300), (214, 99650), (428, 49825), (535, 39860), (1070, 19930), (1993, 10700), (2140, 9965), (2675, 7972), (3986, 5350)]