21053940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350899}}^1$

素因数の和:350911

約数の個数: 24

約数和(自身を含む): 58951200

約数和(自身を除く): 37897260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350899, 701798, 1052697, 1403596, 1754495, 2105394, 3508990, 4210788, 5263485, 7017980, 10526970, 21053940]

約数ペア:

[(1, 21053940), (2, 10526970), (3, 7017980), (4, 5263485), (5, 4210788), (6, 3508990), (10, 2105394), (12, 1754495), (15, 1403596), (20, 1052697), (30, 701798), (60, 350899)]