18651164

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2274

約数の個数: 36

約数和(自身を含む): 38868984

約数和(自身を除く): 20217820

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2213, 4214, 4426, 8428, 8852, 15491, 30982, 61964, 95159, 108437, 190318, 216874, 380636, 433748, 666113, 1332226, 2664452, 4662791, 9325582, 18651164]

約数ペア:

[(1, 18651164), (2, 9325582), (4, 4662791), (7, 2664452), (14, 1332226), (28, 666113), (43, 433748), (49, 380636), (86, 216874), (98, 190318), (172, 108437), (196, 95159), (301, 61964), (602, 30982), (1204, 15491), (2107, 8852), (2213, 8428), (4214, 4426)]