18869812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 19232588

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 71, 76, 142, 247, 269, 284, 494, 538, 923, 988, 1076, 1349, 1846, 2698, 3497, 3692, 5111, 5396, 6994, 10222, 13988, 17537, 19099, 20444, 35074, 38198, 66443, 70148, 76396, 132886, 248287, 265772, 362881, 496574, 725762, 993148, 1451524, 4717453, 9434906, 18869812]

約数ペア:

[(1, 18869812), (2, 9434906), (4, 4717453), (13, 1451524), (19, 993148), (26, 725762), (38, 496574), (52, 362881), (71, 265772), (76, 248287), (142, 132886), (247, 76396), (269, 70148), (284, 66443), (494, 38198), (538, 35074), (923, 20444), (988, 19099), (1076, 17537), (1349, 13988), (1846, 10222), (2698, 6994), (3497, 5396), (3692, 5111)]