131276871

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 220222080

約数和(自身を除く): 88945209

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 101, 171, 209, 303, 627, 691, 909, 1111, 1881, 1919, 2073, 3333, 5757, 6219, 7601, 9999, 13129, 17271, 21109, 22803, 39387, 63327, 68409, 69791, 118161, 144419, 189981, 209373, 433257, 628119, 767701, 1299771, 1326029, 2303103, 3978087, 6909309, 11934261, 14586319, 43758957, 131276871]

約数ペア:

[(1, 131276871), (3, 43758957), (9, 14586319), (11, 11934261), (19, 6909309), (33, 3978087), (57, 2303103), (99, 1326029), (101, 1299771), (171, 767701), (209, 628119), (303, 433257), (627, 209373), (691, 189981), (909, 144419), (1111, 118161), (1881, 69791), (1919, 68409), (2073, 63327), (3333, 39387), (5757, 22803), (6219, 21109), (7601, 17271), (9999, 13129)]