19004912

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{653}}^1$

素因数の和:785

約数の個数: 40

約数和(自身を含む): 39412656

約数和(自身を除く): 20407744

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 107, 136, 214, 272, 428, 653, 856, 1306, 1712, 1819, 2612, 3638, 5224, 7276, 10448, 11101, 14552, 22202, 29104, 44404, 69871, 88808, 139742, 177616, 279484, 558968, 1117936, 1187807, 2375614, 4751228, 9502456, 19004912]

約数ペア:

[(1, 19004912), (2, 9502456), (4, 4751228), (8, 2375614), (16, 1187807), (17, 1117936), (34, 558968), (68, 279484), (107, 177616), (136, 139742), (214, 88808), (272, 69871), (428, 44404), (653, 29104), (856, 22202), (1306, 14552), (1712, 11101), (1819, 10448), (2612, 7276), (3638, 5224)]