1861461

素因数分解:

$3^4\times 7^3\times {\mathrm{67}}^1$

素因数の和:100

約数の個数: 40

約数和(自身を含む): 3291200

約数和(自身を除く): 1429739

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 67, 81, 147, 189, 201, 343, 441, 469, 567, 603, 1029, 1323, 1407, 1809, 3087, 3283, 3969, 4221, 5427, 9261, 9849, 12663, 22981, 27783, 29547, 37989, 68943, 88641, 206829, 265923, 620487, 1861461]

約数ペア:

[(1, 1861461), (3, 620487), (7, 265923), (9, 206829), (21, 88641), (27, 68943), (49, 37989), (63, 29547), (67, 27783), (81, 22981), (147, 12663), (189, 9849), (201, 9261), (343, 5427), (441, 4221), (469, 3969), (567, 3283), (603, 3087), (1029, 1809), (1323, 1407)]