21477316

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20731}}^1$

素因数の和:20779

約数の個数: 24

約数和(自身を含む): 44117696

約数和(自身を除く): 22640380

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20731, 41462, 82924, 145117, 290234, 580468, 767047, 1534094, 3068188, 5369329, 10738658, 21477316]

約数ペア:

[(1, 21477316), (2, 10738658), (4, 5369329), (7, 3068188), (14, 1534094), (28, 767047), (37, 580468), (74, 290234), (148, 145117), (259, 82924), (518, 41462), (1036, 20731)]