21146853

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 14076699

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1091, 1491, 2769, 3273, 6461, 7637, 14183, 19383, 22911, 42549, 77461, 99281, 232383, 297843, 542227, 1006993, 1626681, 3020979, 7048951, 21146853]

約数ペア:

[(1, 21146853), (3, 7048951), (7, 3020979), (13, 1626681), (21, 1006993), (39, 542227), (71, 297843), (91, 232383), (213, 99281), (273, 77461), (497, 42549), (923, 22911), (1091, 19383), (1491, 14183), (2769, 7637), (3273, 6461)]