21761656

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4919}}^1$

素因数の和:5011

約数の個数: 32

約数和(自身を含む): 47232000

約数和(自身を除く): 25470344

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4919, 9838, 19676, 34433, 39352, 68866, 137732, 275464, 388601, 777202, 1554404, 2720207, 3108808, 5440414, 10880828, 21761656]

約数ペア:

[(1, 21761656), (2, 10880828), (4, 5440414), (7, 3108808), (8, 2720207), (14, 1554404), (28, 777202), (56, 388601), (79, 275464), (158, 137732), (316, 68866), (553, 39352), (632, 34433), (1106, 19676), (2212, 9838), (4424, 4919)]