20779164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{82457}}^1$

素因数の和:82474

約数の個数: 36

約数和(自身を含む): 60029424

約数和(自身を除く): 39250260

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 82457, 164914, 247371, 329828, 494742, 577199, 742113, 989484, 1154398, 1484226, 1731597, 2308796, 2968452, 3463194, 5194791, 6926388, 10389582, 20779164]

約数ペア:

[(1, 20779164), (2, 10389582), (3, 6926388), (4, 5194791), (6, 3463194), (7, 2968452), (9, 2308796), (12, 1731597), (14, 1484226), (18, 1154398), (21, 989484), (28, 742113), (36, 577199), (42, 494742), (63, 329828), (84, 247371), (126, 164914), (252, 82457)]