21362608

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{78539}}^1$

素因数の和:78564

約数の個数: 20

約数和(自身を含む): 43825320

約数和(自身を除く): 22462712

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 78539, 157078, 314156, 628312, 1256624, 1335163, 2670326, 5340652, 10681304, 21362608]

約数ペア:

[(1, 21362608), (2, 10681304), (4, 5340652), (8, 2670326), (16, 1335163), (17, 1256624), (34, 628312), (68, 314156), (136, 157078), (272, 78539)]