20173779857

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{88903}}^1$

素因数の和:89349

約数の個数: 24

約数和(自身を含む): 25661961792

約数和(自身を除く): 5488181935

約数列:

[1, 7, 11, 49, 77, 421, 539, 2947, 4631, 20629, 32417, 88903, 226919, 622321, 977933, 4356247, 6845531, 37428163, 47918717, 261997141, 411709793, 1833979987, 2881968551, 20173779857]

約数ペア:

[(1, 20173779857), (7, 2881968551), (11, 1833979987), (49, 411709793), (77, 261997141), (421, 47918717), (539, 37428163), (2947, 6845531), (4631, 4356247), (20629, 977933), (32417, 622321), (88903, 226919)]