19994872

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{17981}}^1$

素因数の和:18126

約数の個数: 16

約数和(自身を含む): 37762200

約数和(自身を除く): 17767328

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 17981, 35962, 71924, 143848, 2499359, 4998718, 9997436, 19994872]

約数ペア:

[(1, 19994872), (2, 9997436), (4, 4998718), (8, 2499359), (139, 143848), (278, 71924), (556, 35962), (1112, 17981)]