25890921

素因数分解:

$3^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 45846528

約数和(自身を除く): 19955607

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 243, 279, 491, 567, 651, 837, 1473, 1701, 1953, 2511, 3437, 4419, 5859, 7533, 10311, 13257, 15221, 17577, 30933, 39771, 45663, 52731, 92799, 106547, 119313, 136989, 278397, 319641, 410967, 835191, 958923, 1232901, 2876769, 3698703, 8630307, 25890921]

約数ペア:

[(1, 25890921), (3, 8630307), (7, 3698703), (9, 2876769), (21, 1232901), (27, 958923), (31, 835191), (63, 410967), (81, 319641), (93, 278397), (189, 136989), (217, 119313), (243, 106547), (279, 92799), (491, 52731), (567, 45663), (651, 39771), (837, 30933), (1473, 17577), (1701, 15221), (1953, 13257), (2511, 10311), (3437, 7533), (4419, 5859)]