21386316

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5417}}^1$

素因数の和:5478

約数の個数: 48

約数和(自身を含む): 58254336

約数和(自身を除く): 36868020

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 5417, 10834, 16251, 21668, 32502, 37919, 65004, 75838, 113757, 151676, 227514, 254599, 455028, 509198, 763797, 1018396, 1527594, 1782193, 3055188, 3564386, 5346579, 7128772, 10693158, 21386316]

約数ペア:

[(1, 21386316), (2, 10693158), (3, 7128772), (4, 5346579), (6, 3564386), (7, 3055188), (12, 1782193), (14, 1527594), (21, 1018396), (28, 763797), (42, 509198), (47, 455028), (84, 254599), (94, 227514), (141, 151676), (188, 113757), (282, 75838), (329, 65004), (564, 37919), (658, 32502), (987, 21668), (1316, 16251), (1974, 10834), (3948, 5417)]