21717574715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{28111}}^1$

素因数の和:28343

約数の個数: 32

約数和(自身を含む): 28235692800

約数和(自身を除く): 6518118085

約数列:

[1, 5, 17, 61, 85, 149, 305, 745, 1037, 2533, 5185, 9089, 12665, 28111, 45445, 140555, 154513, 477887, 772565, 1714771, 2389435, 4188539, 8573855, 20942695, 29151107, 71205163, 145755535, 255500879, 356025815, 1277504395, 4343514943, 21717574715]

約数ペア:

[(1, 21717574715), (5, 4343514943), (17, 1277504395), (61, 356025815), (85, 255500879), (149, 145755535), (305, 71205163), (745, 29151107), (1037, 20942695), (2533, 8573855), (5185, 4188539), (9089, 2389435), (12665, 1714771), (28111, 772565), (45445, 477887), (140555, 154513)]