18490814

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:931

約数の個数: 16

約数和(自身を含む): 28312416

約数和(自身を除く): 9821602

約数列:

[1, 2, 71, 142, 197, 394, 661, 1322, 13987, 27974, 46931, 93862, 130217, 260434, 9245407, 18490814]

約数ペア:

[(1, 18490814), (2, 9245407), (71, 260434), (142, 130217), (197, 93862), (394, 46931), (661, 27974), (1322, 13987)]