21978464

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12959}}^1$

素因数の和:13022

約数の個数: 24

約数和(自身を含む): 44089920

約数和(自身を除く): 22111456

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12959, 25918, 51836, 103672, 207344, 414688, 686827, 1373654, 2747308, 5494616, 10989232, 21978464]

約数ペア:

[(1, 21978464), (2, 10989232), (4, 5494616), (8, 2747308), (16, 1373654), (32, 686827), (53, 414688), (106, 207344), (212, 103672), (424, 51836), (848, 25918), (1696, 12959)]