18834263

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 5495977

約数列:

[1, 7, 19, 23, 47, 131, 133, 161, 329, 437, 893, 917, 1081, 2489, 3013, 3059, 6157, 6251, 7567, 17423, 20539, 21091, 43099, 57247, 116983, 141611, 143773, 400729, 818881, 991277, 2690609, 18834263]

約数ペア:

[(1, 18834263), (7, 2690609), (19, 991277), (23, 818881), (47, 400729), (131, 143773), (133, 141611), (161, 116983), (329, 57247), (437, 43099), (893, 21091), (917, 20539), (1081, 17423), (2489, 7567), (3013, 6251), (3059, 6157)]