20171756638

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1\times {\mathrm{997}}^1$

素因数の和:1625

約数の個数: 64

約数和(自身を含む): 35209440000

約数和(自身を除く): 15037683362

約数列:

[1, 2, 11, 19, 22, 38, 97, 194, 209, 418, 499, 997, 998, 1067, 1843, 1994, 2134, 3686, 5489, 9481, 10967, 10978, 18943, 18962, 20273, 21934, 37886, 40546, 48403, 96709, 96806, 104291, 193418, 208373, 208582, 416746, 497503, 532433, 919657, 995006, 1063799, 1064866, 1837471, 1839314, 2127598, 3674942, 5472533, 9452557, 10116227, 10945066, 18905114, 20212181, 20232454, 40424362, 48257791, 96515582, 103978127, 207956254, 530835701, 916898029, 1061671402, 1833796058, 10085878319, 20171756638]

約数ペア:

[(1, 20171756638), (2, 10085878319), (11, 1833796058), (19, 1061671402), (22, 916898029), (38, 530835701), (97, 207956254), (194, 103978127), (209, 96515582), (418, 48257791), (499, 40424362), (997, 20232454), (998, 20212181), (1067, 18905114), (1843, 10945066), (1994, 10116227), (2134, 9452557), (3686, 5472533), (5489, 3674942), (9481, 2127598), (10967, 1839314), (10978, 1837471), (18943, 1064866), (18962, 1063799), (20273, 995006), (21934, 919657), (37886, 532433), (40546, 497503), (48403, 416746), (96709, 208582), (96806, 208373), (104291, 193418)]