21480716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1579}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 39816000

約数和(自身を除く): 18335284

約数列:

[1, 2, 4, 19, 38, 76, 179, 358, 716, 1579, 3158, 3401, 6316, 6802, 13604, 30001, 60002, 120004, 282641, 565282, 1130564, 5370179, 10740358, 21480716]

約数ペア:

[(1, 21480716), (2, 10740358), (4, 5370179), (19, 1130564), (38, 565282), (76, 282641), (179, 120004), (358, 60002), (716, 30001), (1579, 13604), (3158, 6802), (3401, 6316)]