21144840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{176207}}^1$

素因数の和:176221

約数の個数: 32

約数和(自身を含む): 63434880

約数和(自身を除く): 42290040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 176207, 352414, 528621, 704828, 881035, 1057242, 1409656, 1762070, 2114484, 2643105, 3524140, 4228968, 5286210, 7048280, 10572420, 21144840]

約数ペア:

[(1, 21144840), (2, 10572420), (3, 7048280), (4, 5286210), (5, 4228968), (6, 3524140), (8, 2643105), (10, 2114484), (12, 1762070), (15, 1409656), (20, 1057242), (24, 881035), (30, 704828), (40, 528621), (60, 352414), (120, 176207)]