20895856

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{4519}}^1$

素因数の和:4561

約数の個数: 30

約数和(自身を含む): 43016840

約数和(自身を除く): 22120984

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4519, 4624, 9038, 18076, 36152, 72304, 76823, 153646, 307292, 614584, 1229168, 1305991, 2611982, 5223964, 10447928, 20895856]

約数ペア:

[(1, 20895856), (2, 10447928), (4, 5223964), (8, 2611982), (16, 1305991), (17, 1229168), (34, 614584), (68, 307292), (136, 153646), (272, 76823), (289, 72304), (578, 36152), (1156, 18076), (2312, 9038), (4519, 4624)]