21781378078

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{136333}}^1$

素因数の和:136516

約数の個数: 32

約数和(自身を含む): 35808943104

約数和(自身を除く): 14027565026

約数列:

[1, 2, 17, 34, 37, 74, 127, 254, 629, 1258, 2159, 4318, 4699, 9398, 79883, 136333, 159766, 272666, 2317661, 4635322, 5044321, 10088642, 17314291, 34628582, 85753457, 171506914, 294342947, 588685894, 640628767, 1281257534, 10890689039, 21781378078]

約数ペア:

[(1, 21781378078), (2, 10890689039), (17, 1281257534), (34, 640628767), (37, 588685894), (74, 294342947), (127, 171506914), (254, 85753457), (629, 34628582), (1258, 17314291), (2159, 10088642), (4318, 5044321), (4699, 4635322), (9398, 2317661), (79883, 272666), (136333, 159766)]