17818948

素因数分解:

$2^2\times 7^2\times {\mathrm{229}}^1\times {\mathrm{397}}^1$

素因数の和:644

約数の個数: 36

約数和(自身を含む): 36524460

約数和(自身を除く): 18705512

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 229, 397, 458, 794, 916, 1588, 1603, 2779, 3206, 5558, 6412, 11116, 11221, 19453, 22442, 38906, 44884, 77812, 90913, 181826, 363652, 636391, 1272782, 2545564, 4454737, 8909474, 17818948]

約数ペア:

[(1, 17818948), (2, 8909474), (4, 4454737), (7, 2545564), (14, 1272782), (28, 636391), (49, 363652), (98, 181826), (196, 90913), (229, 77812), (397, 44884), (458, 38906), (794, 22442), (916, 19453), (1588, 11221), (1603, 11116), (2779, 6412), (3206, 5558)]