21000570660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{4099}}^1\times {\mathrm{28463}}^1$

素因数の和:32577

約数の個数: 72

約数和(自身を含む): 63719510400

約数和(自身を除く): 42718939740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 4099, 8198, 12297, 16396, 20495, 24594, 28463, 36891, 40990, 49188, 56926, 61485, 73782, 81980, 85389, 113852, 122970, 142315, 147564, 170778, 184455, 245940, 256167, 284630, 341556, 368910, 426945, 512334, 569260, 737820, 853890, 1024668, 1280835, 1707780, 2561670, 5123340, 116669837, 233339674, 350009511, 466679348, 583349185, 700019022, 1050028533, 1166698370, 1400038044, 1750047555, 2100057066, 2333396740, 3500095110, 4200114132, 5250142665, 7000190220, 10500285330, 21000570660]

約数ペア:

[(1, 21000570660), (2, 10500285330), (3, 7000190220), (4, 5250142665), (5, 4200114132), (6, 3500095110), (9, 2333396740), (10, 2100057066), (12, 1750047555), (15, 1400038044), (18, 1166698370), (20, 1050028533), (30, 700019022), (36, 583349185), (45, 466679348), (60, 350009511), (90, 233339674), (180, 116669837), (4099, 5123340), (8198, 2561670), (12297, 1707780), (16396, 1280835), (20495, 1024668), (24594, 853890), (28463, 737820), (36891, 569260), (40990, 512334), (49188, 426945), (56926, 368910), (61485, 341556), (73782, 284630), (81980, 256167), (85389, 245940), (113852, 184455), (122970, 170778), (142315, 147564)]