28214487

素因数分解:

$3^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 51430400

約数和(自身を除く): 23215913

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 97, 133, 171, 189, 243, 291, 399, 513, 567, 679, 729, 873, 1197, 1539, 1701, 1843, 2037, 2187, 2619, 3591, 4617, 5103, 5529, 6111, 7857, 10773, 12901, 13851, 15309, 16587, 18333, 23571, 32319, 38703, 41553, 49761, 54999, 70713, 96957, 116109, 149283, 164997, 212139, 290871, 348327, 447849, 494991, 1044981, 1343547, 1484973, 3134943, 4030641, 9404829, 28214487]

約数ペア:

[(1, 28214487), (3, 9404829), (7, 4030641), (9, 3134943), (19, 1484973), (21, 1343547), (27, 1044981), (57, 494991), (63, 447849), (81, 348327), (97, 290871), (133, 212139), (171, 164997), (189, 149283), (243, 116109), (291, 96957), (399, 70713), (513, 54999), (567, 49761), (679, 41553), (729, 38703), (873, 32319), (1197, 23571), (1539, 18333), (1701, 16587), (1843, 15309), (2037, 13851), (2187, 12901), (2619, 10773), (3591, 7857), (4617, 6111), (5103, 5529)]