19942564

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 19683932

約数列:

[1, 2, 4, 17, 23, 34, 41, 46, 68, 82, 92, 164, 311, 391, 622, 697, 782, 943, 1244, 1394, 1564, 1886, 2788, 3772, 5287, 7153, 10574, 12751, 14306, 16031, 21148, 25502, 28612, 32062, 51004, 64124, 121601, 216767, 243202, 293273, 433534, 486404, 586546, 867068, 1173092, 4985641, 9971282, 19942564]

約数ペア:

[(1, 19942564), (2, 9971282), (4, 4985641), (17, 1173092), (23, 867068), (34, 586546), (41, 486404), (46, 433534), (68, 293273), (82, 243202), (92, 216767), (164, 121601), (311, 64124), (391, 51004), (622, 32062), (697, 28612), (782, 25502), (943, 21148), (1244, 16031), (1394, 14306), (1564, 12751), (1886, 10574), (2788, 7153), (3772, 5287)]