19946988

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{11789}}^1$

素因数の和:11846

約数の個数: 36

約数和(自身を含む): 51498720

約数和(自身を除く): 31551732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692, 11789, 23578, 35367, 47156, 70734, 106101, 141468, 212202, 424404, 554083, 1108166, 1662249, 2216332, 3324498, 4986747, 6648996, 9973494, 19946988]

約数ペア:

[(1, 19946988), (2, 9973494), (3, 6648996), (4, 4986747), (6, 3324498), (9, 2216332), (12, 1662249), (18, 1108166), (36, 554083), (47, 424404), (94, 212202), (141, 141468), (188, 106101), (282, 70734), (423, 47156), (564, 35367), (846, 23578), (1692, 11789)]