20828336

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 41899104

約数和(自身を除く): 21070768

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 151, 233, 296, 302, 466, 592, 604, 932, 1208, 1864, 2416, 3728, 5587, 8621, 11174, 17242, 22348, 34484, 35183, 44696, 68968, 70366, 89392, 137936, 140732, 281464, 562928, 1301771, 2603542, 5207084, 10414168, 20828336]

約数ペア:

[(1, 20828336), (2, 10414168), (4, 5207084), (8, 2603542), (16, 1301771), (37, 562928), (74, 281464), (148, 140732), (151, 137936), (233, 89392), (296, 70366), (302, 68968), (466, 44696), (592, 35183), (604, 34484), (932, 22348), (1208, 17242), (1864, 11174), (2416, 8621), (3728, 5587)]