21210854

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{25679}}^1$

素因数の和:25747

約数の個数: 16

約数和(自身を含む): 36979200

約数和(自身を除く): 15768346

約数列:

[1, 2, 7, 14, 59, 118, 413, 826, 25679, 51358, 179753, 359506, 1515061, 3030122, 10605427, 21210854]

約数ペア:

[(1, 21210854), (2, 10605427), (7, 3030122), (14, 1515061), (59, 359506), (118, 179753), (413, 51358), (826, 25679)]