25217703

素因数分解:

$3^3\times 7^4\times {\mathrm{389}}^1$

素因数の和:426

約数の個数: 40

約数和(自身を含む): 43695600

約数和(自身を除く): 18477897

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 389, 441, 1029, 1167, 1323, 2401, 2723, 3087, 3501, 7203, 8169, 9261, 10503, 19061, 21609, 24507, 57183, 64827, 73521, 133427, 171549, 400281, 514647, 933989, 1200843, 2801967, 3602529, 8405901, 25217703]

約数ペア:

[(1, 25217703), (3, 8405901), (7, 3602529), (9, 2801967), (21, 1200843), (27, 933989), (49, 514647), (63, 400281), (147, 171549), (189, 133427), (343, 73521), (389, 64827), (441, 57183), (1029, 24507), (1167, 21609), (1323, 19061), (2401, 10503), (2723, 9261), (3087, 8169), (3501, 7203)]