81631011

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2657}}^1$

素因数の和:2704

約数の個数: 48

約数和(自身を含む): 145445760

約数和(自身を除く): 63814749

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 931, 1463, 1617, 2657, 2793, 4389, 7971, 10241, 18599, 29227, 30723, 50483, 55797, 87681, 130193, 151449, 204589, 353381, 390579, 555313, 613767, 1060143, 1432123, 1665939, 2473667, 3887191, 4296369, 7421001, 11661573, 27210337, 81631011]

約数ペア:

[(1, 81631011), (3, 27210337), (7, 11661573), (11, 7421001), (19, 4296369), (21, 3887191), (33, 2473667), (49, 1665939), (57, 1432123), (77, 1060143), (133, 613767), (147, 555313), (209, 390579), (231, 353381), (399, 204589), (539, 151449), (627, 130193), (931, 87681), (1463, 55797), (1617, 50483), (2657, 30723), (2793, 29227), (4389, 18599), (7971, 10241)]