25621281

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 44104320

約数和(自身を除く): 18483039

約数列:

[1, 3, 7, 9, 21, 59, 61, 63, 113, 177, 183, 339, 413, 427, 531, 549, 791, 1017, 1239, 1281, 2373, 3599, 3717, 3843, 6667, 6893, 7119, 10797, 20001, 20679, 25193, 32391, 46669, 48251, 60003, 62037, 75579, 140007, 144753, 226737, 406687, 420021, 434259, 1220061, 2846809, 3660183, 8540427, 25621281]

約数ペア:

[(1, 25621281), (3, 8540427), (7, 3660183), (9, 2846809), (21, 1220061), (59, 434259), (61, 420021), (63, 406687), (113, 226737), (177, 144753), (183, 140007), (339, 75579), (413, 62037), (427, 60003), (531, 48251), (549, 46669), (791, 32391), (1017, 25193), (1239, 20679), (1281, 20001), (2373, 10797), (3599, 7119), (3717, 6893), (3843, 6667)]