21771090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21991}}^1$

素因数の和:22015

約数の個数: 48

約数和(自身を含む): 61753536

約数和(自身を除く): 39982446

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, 21991, 43982, 65973, 109955, 131946, 197919, 219910, 241901, 329865, 395838, 483802, 659730, 725703, 989595, 1209505, 1451406, 1979190, 2177109, 2419010, 3628515, 4354218, 7257030, 10885545, 21771090]

約数ペア:

[(1, 21771090), (2, 10885545), (3, 7257030), (5, 4354218), (6, 3628515), (9, 2419010), (10, 2177109), (11, 1979190), (15, 1451406), (18, 1209505), (22, 989595), (30, 725703), (33, 659730), (45, 483802), (55, 395838), (66, 329865), (90, 241901), (99, 219910), (110, 197919), (165, 131946), (198, 109955), (330, 65973), (495, 43982), (990, 21991)]