19964178

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{28439}}^1$

素因数の和:28463

約数の個数: 32

約数和(自身を含む): 47779200

約数和(自身を除く): 27815022

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702, 28439, 56878, 85317, 170634, 255951, 369707, 511902, 739414, 767853, 1109121, 1535706, 2218242, 3327363, 6654726, 9982089, 19964178]

約数ペア:

[(1, 19964178), (2, 9982089), (3, 6654726), (6, 3327363), (9, 2218242), (13, 1535706), (18, 1109121), (26, 767853), (27, 739414), (39, 511902), (54, 369707), (78, 255951), (117, 170634), (234, 85317), (351, 56878), (702, 28439)]