1720947381

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1\times {\mathrm{13229}}^1$

素因数の和:13756

約数の個数: 16

約数和(自身を含む): 2322552960

約数和(自身を除く): 601605579

約数列:

[1, 3, 103, 309, 421, 1263, 13229, 39687, 43363, 130089, 1362587, 4087761, 5569409, 16708227, 573649127, 1720947381]

約数ペア:

[(1, 1720947381), (3, 573649127), (103, 16708227), (309, 5569409), (421, 4087761), (1263, 1362587), (13229, 130089), (39687, 43363)]