21213486

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5431}}^1$

素因数の和:5477

約数の個数: 48

約数和(自身を含む): 54233088

約数和(自身を除く): 33019602

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5431, 10862, 16293, 32586, 38017, 48879, 76034, 97758, 114051, 168361, 228102, 336722, 342153, 505083, 684306, 1010166, 1178527, 1515249, 2357054, 3030498, 3535581, 7071162, 10606743, 21213486]

約数ペア:

[(1, 21213486), (2, 10606743), (3, 7071162), (6, 3535581), (7, 3030498), (9, 2357054), (14, 1515249), (18, 1178527), (21, 1010166), (31, 684306), (42, 505083), (62, 342153), (63, 336722), (93, 228102), (126, 168361), (186, 114051), (217, 97758), (279, 76034), (434, 48879), (558, 38017), (651, 32586), (1302, 16293), (1953, 10862), (3906, 5431)]