21981512

素因数分解:

$2^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{6653}}^1$

素因数の和:6725

約数の個数: 32

約数和(自身を含む): 47908800

約数和(自身を除く): 25927288

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 59, 118, 236, 413, 472, 826, 1652, 3304, 6653, 13306, 26612, 46571, 53224, 93142, 186284, 372568, 392527, 785054, 1570108, 2747689, 3140216, 5495378, 10990756, 21981512]

約数ペア:

[(1, 21981512), (2, 10990756), (4, 5495378), (7, 3140216), (8, 2747689), (14, 1570108), (28, 785054), (56, 392527), (59, 372568), (118, 186284), (236, 93142), (413, 53224), (472, 46571), (826, 26612), (1652, 13306), (3304, 6653)]