18910898

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{811}}^1$

素因数の和:1033

約数の個数: 16

約数和(自身を含む): 28939680

約数和(自身を除く): 10028782

約数列:

[1, 2, 89, 131, 178, 262, 811, 1622, 11659, 23318, 72179, 106241, 144358, 212482, 9455449, 18910898]

約数ペア:

[(1, 18910898), (2, 9455449), (89, 212482), (131, 144358), (178, 106241), (262, 72179), (811, 23318), (1622, 11659)]