20703335

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2687}}^1$

素因数の和:2782

約数の個数: 16

約数和(自身を含む): 26320896

約数和(自身を除く): 5617561

約数列:

[1, 5, 23, 67, 115, 335, 1541, 2687, 7705, 13435, 61801, 180029, 309005, 900145, 4140667, 20703335]

約数ペア:

[(1, 20703335), (5, 4140667), (23, 900145), (67, 309005), (115, 180029), (335, 61801), (1541, 13435), (2687, 7705)]