21756882

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1721}}^1$

素因数の和:1783

約数の個数: 48

約数和(自身を含む): 51825312

約数和(自身を除く): 30068430

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 49, 86, 98, 129, 147, 258, 294, 301, 602, 903, 1721, 1806, 2107, 3442, 4214, 5163, 6321, 10326, 12047, 12642, 24094, 36141, 72282, 74003, 84329, 148006, 168658, 222009, 252987, 444018, 505974, 518021, 1036042, 1554063, 3108126, 3626147, 7252294, 10878441, 21756882]

約数ペア:

[(1, 21756882), (2, 10878441), (3, 7252294), (6, 3626147), (7, 3108126), (14, 1554063), (21, 1036042), (42, 518021), (43, 505974), (49, 444018), (86, 252987), (98, 222009), (129, 168658), (147, 148006), (258, 84329), (294, 74003), (301, 72282), (602, 36141), (903, 24094), (1721, 12642), (1806, 12047), (2107, 10326), (3442, 6321), (4214, 5163)]