18998119

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1721}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 23143680

約数和(自身を除く): 4145561

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1721, 11039, 12047, 32699, 142843, 228893, 999901, 2714017, 18998119]

約数ペア:

[(1, 18998119), (7, 2714017), (19, 999901), (83, 228893), (133, 142843), (581, 32699), (1577, 12047), (1721, 11039)]