21040392

素因数分解:

$2^3\times 3^1\times {\mathrm{439}}^1\times {\mathrm{1997}}^1$

素因数の和:2445

約数の個数: 32

約数和(自身を含む): 52747200

約数和(自身を除く): 31706808

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 439, 878, 1317, 1756, 1997, 2634, 3512, 3994, 5268, 5991, 7988, 10536, 11982, 15976, 23964, 47928, 876683, 1753366, 2630049, 3506732, 5260098, 7013464, 10520196, 21040392]

約数ペア:

[(1, 21040392), (2, 10520196), (3, 7013464), (4, 5260098), (6, 3506732), (8, 2630049), (12, 1753366), (24, 876683), (439, 47928), (878, 23964), (1317, 15976), (1756, 11982), (1997, 10536), (2634, 7988), (3512, 5991), (3994, 5268)]