19138007

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 22464000

約数和(自身を除く): 3325993

約数列:

[1, 7, 59, 149, 311, 413, 1043, 2177, 8791, 18349, 46339, 61537, 128443, 324373, 2734001, 19138007]

約数ペア:

[(1, 19138007), (7, 2734001), (59, 324373), (149, 128443), (311, 61537), (413, 46339), (1043, 18349), (2177, 8791)]