21504100

素因数分解:

$2^2\times 5^2\times {\mathrm{359}}^1\times {\mathrm{599}}^1$

素因数の和:972

約数の個数: 36

約数和(自身を含む): 46872000

約数和(自身を除く): 25367900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 359, 599, 718, 1198, 1436, 1795, 2396, 2995, 3590, 5990, 7180, 8975, 11980, 14975, 17950, 29950, 35900, 59900, 215041, 430082, 860164, 1075205, 2150410, 4300820, 5376025, 10752050, 21504100]

約数ペア:

[(1, 21504100), (2, 10752050), (4, 5376025), (5, 4300820), (10, 2150410), (20, 1075205), (25, 860164), (50, 430082), (100, 215041), (359, 59900), (599, 35900), (718, 29950), (1198, 17950), (1436, 14975), (1795, 11980), (2396, 8975), (2995, 7180), (3590, 5990)]