21994742

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7517}}^1$

素因数の和:7556

約数の個数: 32

約数和(自身を含む): 43303680

約数和(自身を除く): 21308938

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 7517, 15034, 52619, 82687, 105238, 142823, 165374, 285646, 578809, 999761, 1157618, 1571053, 1999522, 3142106, 10997371, 21994742]

約数ペア:

[(1, 21994742), (2, 10997371), (7, 3142106), (11, 1999522), (14, 1571053), (19, 1157618), (22, 999761), (38, 578809), (77, 285646), (133, 165374), (154, 142823), (209, 105238), (266, 82687), (418, 52619), (1463, 15034), (2926, 7517)]