19201105

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{941}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 29299968

約数和(自身を除く): 10098863

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 941, 1855, 2915, 4081, 4705, 6587, 10351, 20405, 32935, 49873, 51755, 72457, 249365, 349111, 362285, 548603, 1745555, 2743015, 3840221, 19201105]

約数ペア:

[(1, 19201105), (5, 3840221), (7, 2743015), (11, 1745555), (35, 548603), (53, 362285), (55, 349111), (77, 249365), (265, 72457), (371, 51755), (385, 49873), (583, 32935), (941, 20405), (1855, 10351), (2915, 6587), (4081, 4705)]