21989469590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{642779}}^1$

素因数の和:643108

約数の個数: 32

約数和(自身を含む): 43318229760

約数和(自身を除く): 21328760170

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 311, 622, 1555, 3110, 3421, 6842, 17105, 34210, 642779, 1285558, 3213895, 6427790, 7070569, 14141138, 35352845, 70705690, 199904269, 399808538, 999521345, 1999042690, 2198946959, 4397893918, 10994734795, 21989469590]

約数ペア:

[(1, 21989469590), (2, 10994734795), (5, 4397893918), (10, 2198946959), (11, 1999042690), (22, 999521345), (55, 399808538), (110, 199904269), (311, 70705690), (622, 35352845), (1555, 14141138), (3110, 7070569), (3421, 6427790), (6842, 3213895), (17105, 1285558), (34210, 642779)]