21079473

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 10254927

約数列:

[1, 3, 17, 31, 51, 67, 93, 199, 201, 527, 597, 1139, 1581, 2077, 3383, 3417, 6169, 6231, 10149, 13333, 18507, 35309, 39999, 104873, 105927, 226661, 314619, 413323, 679983, 1239969, 7026491, 21079473]

約数ペア:

[(1, 21079473), (3, 7026491), (17, 1239969), (31, 679983), (51, 413323), (67, 314619), (93, 226661), (199, 105927), (201, 104873), (527, 39999), (597, 35309), (1139, 18507), (1581, 13333), (2077, 10149), (3383, 6231), (3417, 6169)]