20174881881

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{81853}}^1$

素因数の和:81982

約数の個数: 48

約数和(自身を含む): 34140321152

約数和(自身を除く): 13965439271

約数列:

[1, 3, 7, 11, 21, 33, 77, 97, 121, 231, 291, 363, 679, 847, 1067, 2037, 2541, 3201, 7469, 11737, 22407, 35211, 81853, 82159, 245559, 246477, 572971, 900383, 1718913, 2701149, 6302681, 7939741, 9904213, 18908043, 23819223, 29712639, 55578187, 69329491, 87337151, 166734561, 207988473, 262011453, 611360057, 960708661, 1834080171, 2882125983, 6724960627, 20174881881]

約数ペア:

[(1, 20174881881), (3, 6724960627), (7, 2882125983), (11, 1834080171), (21, 960708661), (33, 611360057), (77, 262011453), (97, 207988473), (121, 166734561), (231, 87337151), (291, 69329491), (363, 55578187), (679, 29712639), (847, 23819223), (1067, 18908043), (2037, 9904213), (2541, 7939741), (3201, 6302681), (7469, 2701149), (11737, 1718913), (22407, 900383), (35211, 572971), (81853, 246477), (82159, 245559)]