19713812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4327}}^1$

素因数の和:4415

約数の個数: 24

約数和(自身を含む): 37082304

約数和(自身を除く): 17368492

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4327, 4556, 8654, 17308, 73559, 147118, 289909, 294236, 579818, 1159636, 4928453, 9856906, 19713812]

約数ペア:

[(1, 19713812), (2, 9856906), (4, 4928453), (17, 1159636), (34, 579818), (67, 294236), (68, 289909), (134, 147118), (268, 73559), (1139, 17308), (2278, 8654), (4327, 4556)]