19876281

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 9672519

約数列:

[1, 3, 17, 29, 51, 87, 89, 151, 267, 453, 493, 1479, 1513, 2567, 2581, 4379, 4539, 7701, 7743, 13137, 13439, 40317, 43877, 74443, 131631, 223329, 228463, 389731, 685389, 1169193, 6625427, 19876281]

約数ペア:

[(1, 19876281), (3, 6625427), (17, 1169193), (29, 685389), (51, 389731), (87, 228463), (89, 223329), (151, 131631), (267, 74443), (453, 43877), (493, 40317), (1479, 13439), (1513, 13137), (2567, 7743), (2581, 7701), (4379, 4539)]