19878166

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4451}}^1$

素因数の和:4500

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 18587114

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 319, 406, 638, 2233, 4451, 4466, 8902, 31157, 48961, 62314, 97922, 129079, 258158, 342727, 685454, 903553, 1419869, 1807106, 2839738, 9939083, 19878166]

約数ペア:

[(1, 19878166), (2, 9939083), (7, 2839738), (11, 1807106), (14, 1419869), (22, 903553), (29, 685454), (58, 342727), (77, 258158), (154, 129079), (203, 97922), (319, 62314), (406, 48961), (638, 31157), (2233, 8902), (4451, 4466)]