19746378

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15451}}^1$

素因数の和:15530

約数の個数: 24

約数和(自身を含む): 43389216

約数和(自身を除く): 23642838

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15451, 30902, 46353, 92706, 139059, 278118, 1097021, 2194042, 3291063, 6582126, 9873189, 19746378]

約数ペア:

[(1, 19746378), (2, 9873189), (3, 6582126), (6, 3291063), (9, 2194042), (18, 1097021), (71, 278118), (142, 139059), (213, 92706), (426, 46353), (639, 30902), (1278, 15451)]