21438291

素因数分解:

$3^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{6113}}^1$

素因数の和:6290

約数の個数: 16

約数和(自身を含む): 32868864

約数和(自身を除く): 11430573

約数列:

[1, 3, 7, 21, 167, 501, 1169, 3507, 6113, 18339, 42791, 128373, 1020871, 3062613, 7146097, 21438291]

約数ペア:

[(1, 21438291), (3, 7146097), (7, 3062613), (21, 1020871), (167, 128373), (501, 42791), (1169, 18339), (3507, 6113)]