20874006

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 46846800

約数和(自身を除く): 25972794

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 149, 181, 258, 298, 362, 387, 447, 543, 774, 894, 1086, 1341, 1629, 2682, 3258, 6407, 7783, 12814, 15566, 19221, 23349, 26969, 38442, 46698, 53938, 57663, 70047, 80907, 115326, 140094, 161814, 242721, 485442, 1159667, 2319334, 3479001, 6958002, 10437003, 20874006]

約数ペア:

[(1, 20874006), (2, 10437003), (3, 6958002), (6, 3479001), (9, 2319334), (18, 1159667), (43, 485442), (86, 242721), (129, 161814), (149, 140094), (181, 115326), (258, 80907), (298, 70047), (362, 57663), (387, 53938), (447, 46698), (543, 38442), (774, 26969), (894, 23349), (1086, 19221), (1341, 15566), (1629, 12814), (2682, 7783), (3258, 6407)]