19643439

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 26683904

約数和(自身を除く): 7040465

約数列:

[1, 3, 103, 151, 309, 421, 453, 1263, 15553, 43363, 46659, 63571, 130089, 190713, 6547813, 19643439]

約数ペア:

[(1, 19643439), (3, 6547813), (103, 190713), (151, 130089), (309, 63571), (421, 46659), (453, 43363), (1263, 15553)]