18981851

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{883}}^1$

素因数の和:1010

約数の個数: 16

約数和(自身を含む): 22573824

約数和(自身を除く): 3591973

約数列:

[1, 7, 37, 83, 259, 581, 883, 3071, 6181, 21497, 32671, 73289, 228697, 513023, 2711693, 18981851]

約数ペア:

[(1, 18981851), (7, 2711693), (37, 513023), (83, 228697), (259, 73289), (581, 32671), (883, 21497), (3071, 6181)]