21987756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{87253}}^1$

素因数の和:87270

約数の個数: 36

約数和(自身を含む): 63520912

約数和(自身を除く): 41533156

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 87253, 174506, 261759, 349012, 523518, 610771, 785277, 1047036, 1221542, 1570554, 1832313, 2443084, 3141108, 3664626, 5496939, 7329252, 10993878, 21987756]

約数ペア:

[(1, 21987756), (2, 10993878), (3, 7329252), (4, 5496939), (6, 3664626), (7, 3141108), (9, 2443084), (12, 1832313), (14, 1570554), (18, 1221542), (21, 1047036), (28, 785277), (36, 610771), (42, 523518), (63, 349012), (84, 261759), (126, 174506), (252, 87253)]