19998362

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{7127}}^1$

素因数の和:7213

約数の個数: 16

約数和(自身を含む): 31819392

約数和(自身を除く): 11821030

約数列:

[1, 2, 23, 46, 61, 122, 1403, 2806, 7127, 14254, 163921, 327842, 434747, 869494, 9999181, 19998362]

約数ペア:

[(1, 19998362), (2, 9999181), (23, 869494), (46, 434747), (61, 327842), (122, 163921), (1403, 14254), (2806, 7127)]