21161336

素因数分解:

$2^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 47435400

約数和(自身を除く): 26274064

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 259, 296, 392, 518, 1036, 1459, 1813, 2072, 2918, 3626, 5836, 7252, 10213, 11672, 14504, 20426, 40852, 53983, 71491, 81704, 107966, 142982, 215932, 285964, 377881, 431864, 571928, 755762, 1511524, 2645167, 3023048, 5290334, 10580668, 21161336]

約数ペア:

[(1, 21161336), (2, 10580668), (4, 5290334), (7, 3023048), (8, 2645167), (14, 1511524), (28, 755762), (37, 571928), (49, 431864), (56, 377881), (74, 285964), (98, 215932), (148, 142982), (196, 107966), (259, 81704), (296, 71491), (392, 53983), (518, 40852), (1036, 20426), (1459, 14504), (1813, 11672), (2072, 10213), (2918, 7252), (3626, 5836)]