18673893

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{947}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 30957888

約数和(自身を除く): 12283995

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 947, 2191, 2817, 2841, 6573, 6629, 8523, 19719, 19887, 59661, 296411, 889233, 2074877, 2667699, 6224631, 18673893]

約数ペア:

[(1, 18673893), (3, 6224631), (7, 2667699), (9, 2074877), (21, 889233), (63, 296411), (313, 59661), (939, 19887), (947, 19719), (2191, 8523), (2817, 6629), (2841, 6573)]