18659412

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 49762440

約数和(自身を除く): 31103028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 61, 87, 116, 122, 174, 183, 244, 261, 293, 348, 366, 522, 549, 586, 732, 879, 1044, 1098, 1172, 1758, 1769, 2196, 2637, 3516, 3538, 5274, 5307, 7076, 8497, 10548, 10614, 15921, 16994, 17873, 21228, 25491, 31842, 33988, 35746, 50982, 53619, 63684, 71492, 76473, 101964, 107238, 152946, 160857, 214476, 305892, 321714, 518317, 643428, 1036634, 1554951, 2073268, 3109902, 4664853, 6219804, 9329706, 18659412]

約数ペア:

[(1, 18659412), (2, 9329706), (3, 6219804), (4, 4664853), (6, 3109902), (9, 2073268), (12, 1554951), (18, 1036634), (29, 643428), (36, 518317), (58, 321714), (61, 305892), (87, 214476), (116, 160857), (122, 152946), (174, 107238), (183, 101964), (244, 76473), (261, 71492), (293, 63684), (348, 53619), (366, 50982), (522, 35746), (549, 33988), (586, 31842), (732, 25491), (879, 21228), (1044, 17873), (1098, 16994), (1172, 15921), (1758, 10614), (1769, 10548), (2196, 8497), (2637, 7076), (3516, 5307), (3538, 5274)]