21597548

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^3\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 46186560

約数和(自身を除く): 24589012

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 157, 238, 289, 314, 476, 578, 628, 1099, 1156, 2023, 2198, 2669, 4046, 4396, 4913, 5338, 8092, 9826, 10676, 18683, 19652, 34391, 37366, 45373, 68782, 74732, 90746, 137564, 181492, 317611, 635222, 771341, 1270444, 1542682, 3085364, 5399387, 10798774, 21597548]

約数ペア:

[(1, 21597548), (2, 10798774), (4, 5399387), (7, 3085364), (14, 1542682), (17, 1270444), (28, 771341), (34, 635222), (68, 317611), (119, 181492), (157, 137564), (238, 90746), (289, 74732), (314, 68782), (476, 45373), (578, 37366), (628, 34391), (1099, 19652), (1156, 18683), (2023, 10676), (2198, 9826), (2669, 8092), (4046, 5338), (4396, 4913)]