21284796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2903}}^1$

素因数の和:2970

約数の個数: 48

約数和(自身を含む): 54641664

約数和(自身を除く): 33356868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 2903, 3666, 5806, 7332, 8709, 11612, 17418, 34836, 37739, 75478, 113217, 136441, 150956, 226434, 272882, 409323, 452868, 545764, 818646, 1637292, 1773733, 3547466, 5321199, 7094932, 10642398, 21284796]

約数ペア:

[(1, 21284796), (2, 10642398), (3, 7094932), (4, 5321199), (6, 3547466), (12, 1773733), (13, 1637292), (26, 818646), (39, 545764), (47, 452868), (52, 409323), (78, 272882), (94, 226434), (141, 150956), (156, 136441), (188, 113217), (282, 75478), (564, 37739), (611, 34836), (1222, 17418), (1833, 11612), (2444, 8709), (2903, 7332), (3666, 5806)]