21250871820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{54181}}^1$

素因数の和:56375

約数の個数: 72

約数和(自身を含む): 64491750960

約数和(自身を除く): 43240879140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2179, 4358, 6537, 8716, 10895, 13074, 19611, 21790, 26148, 32685, 39222, 43580, 54181, 65370, 78444, 98055, 108362, 130740, 162543, 196110, 216724, 270905, 325086, 392220, 487629, 541810, 650172, 812715, 975258, 1083620, 1625430, 1950516, 2438145, 3250860, 4876290, 9752580, 118060399, 236120798, 354181197, 472241596, 590301995, 708362394, 1062543591, 1180603990, 1416724788, 1770905985, 2125087182, 2361207980, 3541811970, 4250174364, 5312717955, 7083623940, 10625435910, 21250871820]

約数ペア:

[(1, 21250871820), (2, 10625435910), (3, 7083623940), (4, 5312717955), (5, 4250174364), (6, 3541811970), (9, 2361207980), (10, 2125087182), (12, 1770905985), (15, 1416724788), (18, 1180603990), (20, 1062543591), (30, 708362394), (36, 590301995), (45, 472241596), (60, 354181197), (90, 236120798), (180, 118060399), (2179, 9752580), (4358, 4876290), (6537, 3250860), (8716, 2438145), (10895, 1950516), (13074, 1625430), (19611, 1083620), (21790, 975258), (26148, 812715), (32685, 650172), (39222, 541810), (43580, 487629), (54181, 392220), (65370, 325086), (78444, 270905), (98055, 216724), (108362, 196110), (130740, 162543)]