21777030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21997}}^1$

素因数の和:22021

約数の個数: 48

約数和(自身を含む): 61770384

約数和(自身を除く): 39993354

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21997, 43994, 65991, 109985, 131982, 197973, 219970, 241967, 329955, 395946, 483934, 659910, 725901, 989865, 1209835, 1451802, 1979730, 2177703, 2419670, 3629505, 4355406, 7259010, 10888515, 21777030]

約数ペア:

[(1, 21777030), (2, 10888515), (3, 7259010), (5, 4355406), (6, 3629505), (9, 2419670), (10, 2177703), (11, 1979730), (15, 1451802), (18, 1209835), (22, 989865), (30, 725901), (33, 659910), (45, 483934), (55, 395946), (66, 329955), (90, 241967), (99, 219970), (110, 197973), (165, 131982), (198, 109985), (330, 65991), (495, 43994), (990, 21997)]