21727980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40237}}^1$

素因数の和:40255

約数の個数: 48

約数和(自身を含む): 67599840

約数和(自身を除く): 45871860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40237, 80474, 120711, 160948, 201185, 241422, 362133, 402370, 482844, 603555, 724266, 804740, 1086399, 1207110, 1448532, 1810665, 2172798, 2414220, 3621330, 4345596, 5431995, 7242660, 10863990, 21727980]

約数ペア:

[(1, 21727980), (2, 10863990), (3, 7242660), (4, 5431995), (5, 4345596), (6, 3621330), (9, 2414220), (10, 2172798), (12, 1810665), (15, 1448532), (18, 1207110), (20, 1086399), (27, 804740), (30, 724266), (36, 603555), (45, 482844), (54, 402370), (60, 362133), (90, 241422), (108, 201185), (135, 160948), (180, 120711), (270, 80474), (540, 40237)]