19663668

素因数分解:

$2^2\times 3^3\times {\mathrm{163}}^1\times {\mathrm{1117}}^1$

素因数の和:1293

約数の個数: 48

約数和(自身を含む): 51338560

約数和(自身を除く): 31674892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 163, 326, 489, 652, 978, 1117, 1467, 1956, 2234, 2934, 3351, 4401, 4468, 5868, 6702, 8802, 10053, 13404, 17604, 20106, 30159, 40212, 60318, 120636, 182071, 364142, 546213, 728284, 1092426, 1638639, 2184852, 3277278, 4915917, 6554556, 9831834, 19663668]

約数ペア:

[(1, 19663668), (2, 9831834), (3, 6554556), (4, 4915917), (6, 3277278), (9, 2184852), (12, 1638639), (18, 1092426), (27, 728284), (36, 546213), (54, 364142), (108, 182071), (163, 120636), (326, 60318), (489, 40212), (652, 30159), (978, 20106), (1117, 17604), (1467, 13404), (1956, 10053), (2234, 8802), (2934, 6702), (3351, 5868), (4401, 4468)]