21254632

素因数分解:

$2^3\times 7^2\times {\mathrm{59}}^1\times {\mathrm{919}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 47196000

約数和(自身を除く): 25941368

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 59, 98, 118, 196, 236, 392, 413, 472, 826, 919, 1652, 1838, 2891, 3304, 3676, 5782, 6433, 7352, 11564, 12866, 23128, 25732, 45031, 51464, 54221, 90062, 108442, 180124, 216884, 360248, 379547, 433768, 759094, 1518188, 2656829, 3036376, 5313658, 10627316, 21254632]

約数ペア:

[(1, 21254632), (2, 10627316), (4, 5313658), (7, 3036376), (8, 2656829), (14, 1518188), (28, 759094), (49, 433768), (56, 379547), (59, 360248), (98, 216884), (118, 180124), (196, 108442), (236, 90062), (392, 54221), (413, 51464), (472, 45031), (826, 25732), (919, 23128), (1652, 12866), (1838, 11564), (2891, 7352), (3304, 6433), (3676, 5782)]