19875464

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^2$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 44378880

約数和(自身を除く): 24503416

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 107, 124, 214, 217, 248, 428, 434, 749, 856, 868, 1498, 1736, 2996, 3317, 5992, 6634, 11449, 13268, 22898, 23219, 26536, 45796, 46438, 80143, 91592, 92876, 160286, 185752, 320572, 354919, 641144, 709838, 1419676, 2484433, 2839352, 4968866, 9937732, 19875464]

約数ペア:

[(1, 19875464), (2, 9937732), (4, 4968866), (7, 2839352), (8, 2484433), (14, 1419676), (28, 709838), (31, 641144), (56, 354919), (62, 320572), (107, 185752), (124, 160286), (214, 92876), (217, 91592), (248, 80143), (428, 46438), (434, 45796), (749, 26536), (856, 23219), (868, 22898), (1498, 13268), (1736, 11449), (2996, 6634), (3317, 5992)]