17819438

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 34128864

約数和(自身を除く): 16309426

約数列:

[1, 2, 7, 13, 14, 26, 49, 71, 91, 98, 142, 182, 197, 394, 497, 637, 923, 994, 1274, 1379, 1846, 2561, 2758, 3479, 5122, 6461, 6958, 9653, 12922, 13987, 17927, 19306, 27974, 35854, 45227, 90454, 97909, 125489, 181831, 195818, 250978, 363662, 685363, 1272817, 1370726, 2545634, 8909719, 17819438]

約数ペア:

[(1, 17819438), (2, 8909719), (7, 2545634), (13, 1370726), (14, 1272817), (26, 685363), (49, 363662), (71, 250978), (91, 195818), (98, 181831), (142, 125489), (182, 97909), (197, 90454), (394, 45227), (497, 35854), (637, 27974), (923, 19306), (994, 17927), (1274, 13987), (1379, 12922), (1846, 9653), (2561, 6958), (2758, 6461), (3479, 5122)]