18757739

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2677}}^1$

素因数の和:2715

約数の個数: 24

約数和(自身を含む): 25644528

約数和(自身を除く): 6886789

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2677, 7007, 18739, 29447, 34801, 131173, 206129, 243607, 382811, 1442903, 1705249, 2679677, 18757739]

約数ペア:

[(1, 18757739), (7, 2679677), (11, 1705249), (13, 1442903), (49, 382811), (77, 243607), (91, 206129), (143, 131173), (539, 34801), (637, 29447), (1001, 18739), (2677, 7007)]