21565572

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1847}}^1$

素因数の和:2000

約数の個数: 48

約数和(自身を含む): 57953280

約数和(自身を除く): 36387708

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 139, 278, 417, 556, 834, 973, 1668, 1847, 1946, 2919, 3694, 3892, 5541, 5838, 7388, 11082, 11676, 12929, 22164, 25858, 38787, 51716, 77574, 155148, 256733, 513466, 770199, 1026932, 1540398, 1797131, 3080796, 3594262, 5391393, 7188524, 10782786, 21565572]

約数ペア:

[(1, 21565572), (2, 10782786), (3, 7188524), (4, 5391393), (6, 3594262), (7, 3080796), (12, 1797131), (14, 1540398), (21, 1026932), (28, 770199), (42, 513466), (84, 256733), (139, 155148), (278, 77574), (417, 51716), (556, 38787), (834, 25858), (973, 22164), (1668, 12929), (1847, 11676), (1946, 11082), (2919, 7388), (3694, 5838), (3892, 5541)]