21074640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87811}}^1$

素因数の和:87827

約数の個数: 40

約数和(自身を含む): 65332128

約数和(自身を除く): 44257488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87811, 175622, 263433, 351244, 439055, 526866, 702488, 878110, 1053732, 1317165, 1404976, 1756220, 2107464, 2634330, 3512440, 4214928, 5268660, 7024880, 10537320, 21074640]

約数ペア:

[(1, 21074640), (2, 10537320), (3, 7024880), (4, 5268660), (5, 4214928), (6, 3512440), (8, 2634330), (10, 2107464), (12, 1756220), (15, 1404976), (16, 1317165), (20, 1053732), (24, 878110), (30, 702488), (40, 526866), (48, 439055), (60, 351244), (80, 263433), (120, 175622), (240, 87811)]