16998820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11971}}^1$

素因数の和:12051

約数の個数: 24

約数和(自身を含む): 36203328

約数和(自身を除く): 19204508

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 11971, 23942, 47884, 59855, 119710, 239420, 849941, 1699882, 3399764, 4249705, 8499410, 16998820]

約数ペア:

[(1, 16998820), (2, 8499410), (4, 4249705), (5, 3399764), (10, 1699882), (20, 849941), (71, 239420), (142, 119710), (284, 59855), (355, 47884), (710, 23942), (1420, 11971)]