21056196

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{571}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 56376320

約数和(自身を除く): 35320124

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 439, 571, 878, 1142, 1317, 1713, 1756, 2284, 2634, 3073, 3426, 3997, 5268, 6146, 6852, 7994, 9219, 11991, 12292, 15988, 18438, 23982, 36876, 47964, 250669, 501338, 752007, 1002676, 1504014, 1754683, 3008028, 3509366, 5264049, 7018732, 10528098, 21056196]

約数ペア:

[(1, 21056196), (2, 10528098), (3, 7018732), (4, 5264049), (6, 3509366), (7, 3008028), (12, 1754683), (14, 1504014), (21, 1002676), (28, 752007), (42, 501338), (84, 250669), (439, 47964), (571, 36876), (878, 23982), (1142, 18438), (1317, 15988), (1713, 12292), (1756, 11991), (2284, 9219), (2634, 7994), (3073, 6852), (3426, 6146), (3997, 5268)]