21612276

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:773

約数の個数: 72

約数和(自身を含む): 62986560

約数和(自身を除く): 41374284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 617, 834, 973, 1234, 1251, 1668, 1851, 1946, 2468, 2502, 2919, 3702, 3892, 4319, 5004, 5553, 5838, 7404, 8638, 8757, 11106, 11676, 12957, 17276, 17514, 22212, 25914, 35028, 38871, 51828, 77742, 85763, 155484, 171526, 257289, 343052, 514578, 600341, 771867, 1029156, 1200682, 1543734, 1801023, 2401364, 3087468, 3602046, 5403069, 7204092, 10806138, 21612276]

約数ペア:

[(1, 21612276), (2, 10806138), (3, 7204092), (4, 5403069), (6, 3602046), (7, 3087468), (9, 2401364), (12, 1801023), (14, 1543734), (18, 1200682), (21, 1029156), (28, 771867), (36, 600341), (42, 514578), (63, 343052), (84, 257289), (126, 171526), (139, 155484), (252, 85763), (278, 77742), (417, 51828), (556, 38871), (617, 35028), (834, 25914), (973, 22212), (1234, 17514), (1251, 17276), (1668, 12957), (1851, 11676), (1946, 11106), (2468, 8757), (2502, 8638), (2919, 7404), (3702, 5838), (3892, 5553), (4319, 5004)]