19878642

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1223}}^1$

素因数の和:1284

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 31823118

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 54, 63, 86, 126, 129, 189, 258, 301, 378, 387, 602, 774, 903, 1161, 1223, 1806, 2322, 2446, 2709, 3669, 5418, 7338, 8127, 8561, 11007, 16254, 17122, 22014, 25683, 33021, 51366, 52589, 66042, 77049, 105178, 154098, 157767, 231147, 315534, 368123, 462294, 473301, 736246, 946602, 1104369, 1419903, 2208738, 2839806, 3313107, 6626214, 9939321, 19878642]

約数ペア:

[(1, 19878642), (2, 9939321), (3, 6626214), (6, 3313107), (7, 2839806), (9, 2208738), (14, 1419903), (18, 1104369), (21, 946602), (27, 736246), (42, 473301), (43, 462294), (54, 368123), (63, 315534), (86, 231147), (126, 157767), (129, 154098), (189, 105178), (258, 77049), (301, 66042), (378, 52589), (387, 51366), (602, 33021), (774, 25683), (903, 22014), (1161, 17122), (1223, 16254), (1806, 11007), (2322, 8561), (2446, 8127), (2709, 7338), (3669, 5418)]