20185945479

素因数分解:

$3^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{107197}}^1$

素因数の和:107285

約数の個数: 48

約数和(自身を含む): 34560635200

約数和(自身を除く): 14374689721

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 343, 427, 441, 549, 1029, 1281, 2989, 3087, 3843, 8967, 20923, 26901, 62769, 107197, 188307, 321591, 750379, 964773, 2251137, 5252653, 6539017, 6753411, 15757959, 19617051, 36768571, 45773119, 47273877, 58851153, 110305713, 137319357, 320411833, 330917139, 411958071, 961235499, 2242882831, 2883706497, 6728648493, 20185945479]

約数ペア:

[(1, 20185945479), (3, 6728648493), (7, 2883706497), (9, 2242882831), (21, 961235499), (49, 411958071), (61, 330917139), (63, 320411833), (147, 137319357), (183, 110305713), (343, 58851153), (427, 47273877), (441, 45773119), (549, 36768571), (1029, 19617051), (1281, 15757959), (2989, 6753411), (3087, 6539017), (3843, 5252653), (8967, 2251137), (20923, 964773), (26901, 750379), (62769, 321591), (107197, 188307)]