18980494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23549}}^1$

素因数の和:23595

約数の個数: 16

約数和(自身を含む): 31651200

約数和(自身を除く): 12670706

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 23549, 47098, 306137, 612274, 730019, 1460038, 9490247, 18980494]

約数ペア:

[(1, 18980494), (2, 9490247), (13, 1460038), (26, 730019), (31, 612274), (62, 306137), (403, 47098), (806, 23549)]