21649568

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{2341}}^1$

素因数の和:2385

約数の個数: 36

約数和(自身を含む): 45296622

約数和(自身を除く): 23647054

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 289, 544, 578, 1156, 2312, 2341, 4624, 4682, 9248, 9364, 18728, 37456, 39797, 74912, 79594, 159188, 318376, 636752, 676549, 1273504, 1353098, 2706196, 5412392, 10824784, 21649568]

約数ペア:

[(1, 21649568), (2, 10824784), (4, 5412392), (8, 2706196), (16, 1353098), (17, 1273504), (32, 676549), (34, 636752), (68, 318376), (136, 159188), (272, 79594), (289, 74912), (544, 39797), (578, 37456), (1156, 18728), (2312, 9364), (2341, 9248), (4624, 4682)]