21000316620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{563}}^1\times {\mathrm{621679}}^1$

素因数の和:622254

約数の個数: 48

約数和(自身を含む): 58905423360

約数和(自身を除く): 37905106740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 563, 1126, 1689, 2252, 2815, 3378, 5630, 6756, 8445, 11260, 16890, 33780, 621679, 1243358, 1865037, 2486716, 3108395, 3730074, 6216790, 7460148, 9325185, 12433580, 18650370, 37300740, 350005277, 700010554, 1050015831, 1400021108, 1750026385, 2100031662, 3500052770, 4200063324, 5250079155, 7000105540, 10500158310, 21000316620]

約数ペア:

[(1, 21000316620), (2, 10500158310), (3, 7000105540), (4, 5250079155), (5, 4200063324), (6, 3500052770), (10, 2100031662), (12, 1750026385), (15, 1400021108), (20, 1050015831), (30, 700010554), (60, 350005277), (563, 37300740), (1126, 18650370), (1689, 12433580), (2252, 9325185), (2815, 7460148), (3378, 6216790), (5630, 3730074), (6756, 3108395), (8445, 2486716), (11260, 1865037), (16890, 1243358), (33780, 621679)]