18905494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 12705386

約数列:

[1, 2, 19, 23, 38, 46, 97, 194, 223, 437, 446, 874, 1843, 2231, 3686, 4237, 4462, 5129, 8474, 10258, 21631, 42389, 43262, 84778, 97451, 194902, 410989, 497513, 821978, 995026, 9452747, 18905494]

約数ペア:

[(1, 18905494), (2, 9452747), (19, 995026), (23, 821978), (38, 497513), (46, 410989), (97, 194902), (194, 97451), (223, 84778), (437, 43262), (446, 42389), (874, 21631), (1843, 10258), (2231, 8474), (3686, 5129), (4237, 4462)]