21329940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355499}}^1$

素因数の和:355511

約数の個数: 24

約数和(自身を含む): 59724000

約数和(自身を除く): 38394060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355499, 710998, 1066497, 1421996, 1777495, 2132994, 3554990, 4265988, 5332485, 7109980, 10664970, 21329940]

約数ペア:

[(1, 21329940), (2, 10664970), (3, 7109980), (4, 5332485), (5, 4265988), (6, 3554990), (10, 2132994), (12, 1777495), (15, 1421996), (20, 1066497), (30, 710998), (60, 355499)]