21916101

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 32358400

約数和(自身を除く): 10442299

約数列:

[1, 3, 19, 31, 57, 79, 93, 157, 237, 471, 589, 1501, 1767, 2449, 2983, 4503, 4867, 7347, 8949, 12403, 14601, 37209, 46531, 92473, 139593, 235657, 277419, 384493, 706971, 1153479, 7305367, 21916101]

約数ペア:

[(1, 21916101), (3, 7305367), (19, 1153479), (31, 706971), (57, 384493), (79, 277419), (93, 235657), (157, 139593), (237, 92473), (471, 46531), (589, 37209), (1501, 14601), (1767, 12403), (2449, 8949), (2983, 7347), (4503, 4867)]