18782416

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 38836800

約数和(自身を除く): 20054384

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 199, 272, 347, 398, 694, 796, 1388, 1592, 2776, 3184, 3383, 5552, 5899, 6766, 11798, 13532, 23596, 27064, 47192, 54128, 69053, 94384, 138106, 276212, 552424, 1104848, 1173901, 2347802, 4695604, 9391208, 18782416]

約数ペア:

[(1, 18782416), (2, 9391208), (4, 4695604), (8, 2347802), (16, 1173901), (17, 1104848), (34, 552424), (68, 276212), (136, 138106), (199, 94384), (272, 69053), (347, 54128), (398, 47192), (694, 27064), (796, 23596), (1388, 13532), (1592, 11798), (2776, 6766), (3184, 5899), (3383, 5552)]