21478994

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{2029}}^1$

素因数の和:2177

約数の個数: 16

約数和(自身を含む): 33129600

約数和(自身を除く): 11650606

約数列:

[1, 2, 67, 79, 134, 158, 2029, 4058, 5293, 10586, 135943, 160291, 271886, 320582, 10739497, 21478994]

約数ペア:

[(1, 21478994), (2, 10739497), (67, 320582), (79, 271886), (134, 160291), (158, 135943), (2029, 10586), (4058, 5293)]