19922905

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{787}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 24623424

約数和(自身を除く): 4700519

約数列:

[1, 5, 61, 83, 305, 415, 787, 3935, 5063, 25315, 48007, 65321, 240035, 326605, 3984581, 19922905]

約数ペア:

[(1, 19922905), (5, 3984581), (61, 326605), (83, 240035), (305, 65321), (415, 48007), (787, 25315), (3935, 5063)]