21978362

素因数分解:

$2^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1637}}^1$

素因数の和:1790

約数の個数: 24

約数和(自身を含む): 38653524

約数和(自身を除く): 16675162

約数列:

[1, 2, 7, 14, 49, 98, 137, 274, 959, 1637, 1918, 3274, 6713, 11459, 13426, 22918, 80213, 160426, 224269, 448538, 1569883, 3139766, 10989181, 21978362]

約数ペア:

[(1, 21978362), (2, 10989181), (7, 3139766), (14, 1569883), (49, 448538), (98, 224269), (137, 160426), (274, 80213), (959, 22918), (1637, 13426), (1918, 11459), (3274, 6713)]