21256648

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10259}}^1$

素因数の和:10309

約数の個数: 32

約数和(自身を含む): 46785600

約数和(自身を除く): 25528952

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 10259, 20518, 41036, 71813, 82072, 143626, 287252, 379583, 574504, 759166, 1518332, 2657081, 3036664, 5314162, 10628324, 21256648]

約数ペア:

[(1, 21256648), (2, 10628324), (4, 5314162), (7, 3036664), (8, 2657081), (14, 1518332), (28, 759166), (37, 574504), (56, 379583), (74, 287252), (148, 143626), (259, 82072), (296, 71813), (518, 41036), (1036, 20518), (2072, 10259)]