21284664

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12491}}^1$

素因数の和:12571

約数の個数: 32

約数和(自身を含む): 53965440

約数和(自身を除く): 32680776

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12491, 24982, 37473, 49964, 74946, 99928, 149892, 299784, 886861, 1773722, 2660583, 3547444, 5321166, 7094888, 10642332, 21284664]

約数ペア:

[(1, 21284664), (2, 10642332), (3, 7094888), (4, 5321166), (6, 3547444), (8, 2660583), (12, 1773722), (24, 886861), (71, 299784), (142, 149892), (213, 99928), (284, 74946), (426, 49964), (568, 37473), (852, 24982), (1704, 12491)]