21282156

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28151}}^1$

素因数の和:28171

約数の個数: 48

約数和(自身を含む): 63060480

約数和(自身を除く): 41778324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28151, 56302, 84453, 112604, 168906, 197057, 253359, 337812, 394114, 506718, 591171, 760077, 788228, 1013436, 1182342, 1520154, 1773513, 2364684, 3040308, 3547026, 5320539, 7094052, 10641078, 21282156]

約数ペア:

[(1, 21282156), (2, 10641078), (3, 7094052), (4, 5320539), (6, 3547026), (7, 3040308), (9, 2364684), (12, 1773513), (14, 1520154), (18, 1182342), (21, 1013436), (27, 788228), (28, 760077), (36, 591171), (42, 506718), (54, 394114), (63, 337812), (84, 253359), (108, 197057), (126, 168906), (189, 112604), (252, 84453), (378, 56302), (756, 28151)]