19890254

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{853}}^1$

素因数の和:1075

約数の個数: 16

約数和(自身を含む): 30436560

約数和(自身を除く): 10546306

約数列:

[1, 2, 89, 131, 178, 262, 853, 1706, 11659, 23318, 75917, 111743, 151834, 223486, 9945127, 19890254]

約数ペア:

[(1, 19890254), (2, 9945127), (89, 223486), (131, 151834), (178, 111743), (262, 75917), (853, 23318), (1706, 11659)]