18656386

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^2$

素因数の和:354

約数の個数: 24

約数和(自身を含む): 32671296

約数和(自身を除く): 14014910

約数列:

[1, 2, 7, 14, 71, 137, 142, 274, 497, 959, 994, 1918, 9727, 18769, 19454, 37538, 68089, 131383, 136178, 262766, 1332599, 2665198, 9328193, 18656386]

約数ペア:

[(1, 18656386), (2, 9328193), (7, 2665198), (14, 1332599), (71, 262766), (137, 136178), (142, 131383), (274, 68089), (497, 37538), (959, 19454), (994, 18769), (1918, 9727)]