18640766

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{523}}^1$

素因数の和:847

約数の個数: 16

約数和(自身を含む): 28522368

約数和(自身を除く): 9881602

約数列:

[1, 2, 71, 142, 251, 502, 523, 1046, 17821, 35642, 37133, 74266, 131273, 262546, 9320383, 18640766]

約数ペア:

[(1, 18640766), (2, 9320383), (71, 262546), (142, 131273), (251, 74266), (502, 37133), (523, 35642), (1046, 17821)]