20826052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21086588

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 107, 197, 214, 247, 394, 428, 494, 788, 988, 1391, 2033, 2561, 2782, 3743, 4066, 5122, 5564, 7486, 8132, 10244, 14972, 21079, 26429, 42158, 48659, 52858, 84316, 97318, 105716, 194636, 274027, 400501, 548054, 801002, 1096108, 1602004, 5206513, 10413026, 20826052]

約数ペア:

[(1, 20826052), (2, 10413026), (4, 5206513), (13, 1602004), (19, 1096108), (26, 801002), (38, 548054), (52, 400501), (76, 274027), (107, 194636), (197, 105716), (214, 97318), (247, 84316), (394, 52858), (428, 48659), (494, 42158), (788, 26429), (988, 21079), (1391, 14972), (2033, 10244), (2561, 8132), (2782, 7486), (3743, 5564), (4066, 5122)]