215066397

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1229}}^1$

素因数の和:1893

約数の個数: 32

約数和(自身を含む): 353767680

約数和(自身を除く): 138701283

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 641, 1229, 1923, 3687, 4487, 8333, 8603, 13461, 15977, 24999, 25809, 47931, 58331, 111839, 174993, 335517, 787789, 2363367, 5514523, 10241257, 16543569, 30723771, 71688799, 215066397]

約数ペア:

[(1, 215066397), (3, 71688799), (7, 30723771), (13, 16543569), (21, 10241257), (39, 5514523), (91, 2363367), (273, 787789), (641, 335517), (1229, 174993), (1923, 111839), (3687, 58331), (4487, 47931), (8333, 25809), (8603, 24999), (13461, 15977)]