19818159

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9212241

約数列:

[1, 3, 19, 57, 59, 71, 83, 177, 213, 249, 1121, 1349, 1577, 3363, 4047, 4189, 4731, 4897, 5893, 12567, 14691, 17679, 79591, 93043, 111967, 238773, 279129, 335901, 347687, 1043061, 6606053, 19818159]

約数ペア:

[(1, 19818159), (3, 6606053), (19, 1043061), (57, 347687), (59, 335901), (71, 279129), (83, 238773), (177, 111967), (213, 93043), (249, 79591), (1121, 17679), (1349, 14691), (1577, 12567), (3363, 5893), (4047, 4897), (4189, 4731)]