18168994

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1185

約数の個数: 16

約数和(自身を含む): 27855360

約数和(自身を除く): 9686366

約数列:

[1, 2, 89, 103, 178, 206, 991, 1982, 9167, 18334, 88199, 102073, 176398, 204146, 9084497, 18168994]

約数ペア:

[(1, 18168994), (2, 9084497), (89, 204146), (103, 176398), (178, 102073), (206, 88199), (991, 18334), (1982, 9167)]