19943658

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:473

約数の個数: 80

約数和(自身を含む): 52388160

約数和(自身を除く): 32444502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 54, 63, 81, 86, 126, 129, 162, 189, 258, 301, 378, 387, 409, 567, 602, 774, 818, 903, 1134, 1161, 1227, 1806, 2322, 2454, 2709, 2863, 3483, 3681, 5418, 5726, 6966, 7362, 8127, 8589, 11043, 16254, 17178, 17587, 22086, 24381, 25767, 33129, 35174, 48762, 51534, 52761, 66258, 77301, 105522, 123109, 154602, 158283, 231903, 246218, 316566, 369327, 463806, 474849, 738654, 949698, 1107981, 1424547, 2215962, 2849094, 3323943, 6647886, 9971829, 19943658]

約数ペア:

[(1, 19943658), (2, 9971829), (3, 6647886), (6, 3323943), (7, 2849094), (9, 2215962), (14, 1424547), (18, 1107981), (21, 949698), (27, 738654), (42, 474849), (43, 463806), (54, 369327), (63, 316566), (81, 246218), (86, 231903), (126, 158283), (129, 154602), (162, 123109), (189, 105522), (258, 77301), (301, 66258), (378, 52761), (387, 51534), (409, 48762), (567, 35174), (602, 33129), (774, 25767), (818, 24381), (903, 22086), (1134, 17587), (1161, 17178), (1227, 16254), (1806, 11043), (2322, 8589), (2454, 8127), (2709, 7362), (2863, 6966), (3483, 5726), (3681, 5418)]