21994064

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{443}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 44595360

約数和(自身を除く): 22601296

約数列:

[1, 2, 4, 8, 16, 29, 58, 107, 116, 214, 232, 428, 443, 464, 856, 886, 1712, 1772, 3103, 3544, 6206, 7088, 12412, 12847, 24824, 25694, 47401, 49648, 51388, 94802, 102776, 189604, 205552, 379208, 758416, 1374629, 2749258, 5498516, 10997032, 21994064]

約数ペア:

[(1, 21994064), (2, 10997032), (4, 5498516), (8, 2749258), (16, 1374629), (29, 758416), (58, 379208), (107, 205552), (116, 189604), (214, 102776), (232, 94802), (428, 51388), (443, 49648), (464, 47401), (856, 25694), (886, 24824), (1712, 12847), (1772, 12412), (3103, 7088), (3544, 6206)]