19886668

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{17203}}^1$

素因数の和:17241

約数の個数: 18

約数和(自身を含む): 36971396

約数和(自身を除く): 17084728

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 17203, 34406, 68812, 292451, 584902, 1169804, 4971667, 9943334, 19886668]

約数ペア:

[(1, 19886668), (2, 9943334), (4, 4971667), (17, 1169804), (34, 584902), (68, 292451), (289, 68812), (578, 34406), (1156, 17203)]