21000295760

素因数分解:

$2^4\times 5^1\times {\mathrm{262503697}}^1$

素因数の和:262503710

約数の個数: 20

約数和(自身を含む): 48825687828

約数和(自身を除く): 27825392068

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262503697, 525007394, 1050014788, 1312518485, 2100029576, 2625036970, 4200059152, 5250073940, 10500147880, 21000295760]

約数ペア:

[(1, 21000295760), (2, 10500147880), (4, 5250073940), (5, 4200059152), (8, 2625036970), (10, 2100029576), (16, 1312518485), (20, 1050014788), (40, 525007394), (80, 262503697)]