21910072

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 42754320

約数和(自身を除く): 20844248

約数列:

[1, 2, 4, 8, 41, 67, 82, 134, 164, 268, 328, 536, 997, 1994, 2747, 3988, 5494, 7976, 10988, 21976, 40877, 66799, 81754, 133598, 163508, 267196, 327016, 534392, 2738759, 5477518, 10955036, 21910072]

約数ペア:

[(1, 21910072), (2, 10955036), (4, 5477518), (8, 2738759), (41, 534392), (67, 327016), (82, 267196), (134, 163508), (164, 133598), (268, 81754), (328, 66799), (536, 40877), (997, 21976), (1994, 10988), (2747, 7976), (3988, 5494)]