21121492

素因数分解:

$2^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{4517}}^1$

素因数の和:4695

約数の個数: 24

約数和(自身を含む): 42505344

約数和(自身を除く): 21383852

約数列:

[1, 2, 4, 7, 14, 28, 167, 334, 668, 1169, 2338, 4517, 4676, 9034, 18068, 31619, 63238, 126476, 754339, 1508678, 3017356, 5280373, 10560746, 21121492]

約数ペア:

[(1, 21121492), (2, 10560746), (4, 5280373), (7, 3017356), (14, 1508678), (28, 754339), (167, 126476), (334, 63238), (668, 31619), (1169, 18068), (2338, 9034), (4517, 4676)]