13215447

素因数分解:

$3^3\times 7^3\times {\mathrm{1427}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 22848000

約数和(自身を除く): 9632553

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 1427, 3087, 4281, 9261, 9989, 12843, 29967, 38529, 69923, 89901, 209769, 269703, 489461, 629307, 1468383, 1887921, 4405149, 13215447]

約数ペア:

[(1, 13215447), (3, 4405149), (7, 1887921), (9, 1468383), (21, 629307), (27, 489461), (49, 269703), (63, 209769), (147, 89901), (189, 69923), (343, 38529), (441, 29967), (1029, 12843), (1323, 9989), (1427, 9261), (3087, 4281)]