20904998

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 34020000

約数和(自身を除く): 13115002

約数列:

[1, 2, 29, 41, 58, 59, 82, 118, 149, 298, 1189, 1711, 2378, 2419, 3422, 4321, 4838, 6109, 8642, 8791, 12218, 17582, 70151, 140302, 177161, 254939, 354322, 360431, 509878, 720862, 10452499, 20904998]

約数ペア:

[(1, 20904998), (2, 10452499), (29, 720862), (41, 509878), (58, 360431), (59, 354322), (82, 254939), (118, 177161), (149, 140302), (298, 70151), (1189, 17582), (1711, 12218), (2378, 8791), (2419, 8642), (3422, 6109), (4321, 4838)]