31519683

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 55497312

約数和(自身を除く): 23977629

約数列:

[1, 3, 9, 13, 17, 23, 39, 51, 53, 69, 117, 153, 159, 169, 207, 221, 299, 391, 477, 507, 663, 689, 897, 901, 1173, 1219, 1521, 1989, 2067, 2691, 2703, 2873, 3519, 3657, 3887, 5083, 6201, 8109, 8619, 8957, 10971, 11661, 11713, 15249, 15847, 20723, 25857, 26871, 34983, 35139, 45747, 47541, 62169, 66079, 80613, 105417, 142623, 152269, 186507, 198237, 206011, 269399, 456807, 594711, 618033, 808197, 1370421, 1854099, 2424591, 3502187, 10506561, 31519683]

約数ペア:

[(1, 31519683), (3, 10506561), (9, 3502187), (13, 2424591), (17, 1854099), (23, 1370421), (39, 808197), (51, 618033), (53, 594711), (69, 456807), (117, 269399), (153, 206011), (159, 198237), (169, 186507), (207, 152269), (221, 142623), (299, 105417), (391, 80613), (477, 66079), (507, 62169), (663, 47541), (689, 45747), (897, 35139), (901, 34983), (1173, 26871), (1219, 25857), (1521, 20723), (1989, 15847), (2067, 15249), (2691, 11713), (2703, 11661), (2873, 10971), (3519, 8957), (3657, 8619), (3887, 8109), (5083, 6201)]