21191568

素因数分解:

$2^4\times 3^1\times {\mathrm{113}}^1\times {\mathrm{3907}}^1$

素因数の和:4031

約数の個数: 40

約数和(自身を含む): 55243488

約数和(自身を除く): 34051920

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 113, 226, 339, 452, 678, 904, 1356, 1808, 2712, 3907, 5424, 7814, 11721, 15628, 23442, 31256, 46884, 62512, 93768, 187536, 441491, 882982, 1324473, 1765964, 2648946, 3531928, 5297892, 7063856, 10595784, 21191568]

約数ペア:

[(1, 21191568), (2, 10595784), (3, 7063856), (4, 5297892), (6, 3531928), (8, 2648946), (12, 1765964), (16, 1324473), (24, 882982), (48, 441491), (113, 187536), (226, 93768), (339, 62512), (452, 46884), (678, 31256), (904, 23442), (1356, 15628), (1808, 11721), (2712, 7814), (3907, 5424)]