21999090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19819}}^1$

素因数の和:19866

約数の個数: 32

約数和(自身を含む): 54227520

約数和(自身を除く): 32228430

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 1110, 19819, 39638, 59457, 99095, 118914, 198190, 297285, 594570, 733303, 1466606, 2199909, 3666515, 4399818, 7333030, 10999545, 21999090]

約数ペア:

[(1, 21999090), (2, 10999545), (3, 7333030), (5, 4399818), (6, 3666515), (10, 2199909), (15, 1466606), (30, 733303), (37, 594570), (74, 297285), (111, 198190), (185, 118914), (222, 99095), (370, 59457), (555, 39638), (1110, 19819)]