21490018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{6469}}^1$

素因数の和:6633

約数の個数: 16

約数和(自身を含む): 35403840

約数和(自身を除く): 13913822

約数列:

[1, 2, 11, 22, 151, 302, 1661, 3322, 6469, 12938, 71159, 142318, 976819, 1953638, 10745009, 21490018]

約数ペア:

[(1, 21490018), (2, 10745009), (11, 1953638), (22, 976819), (151, 142318), (302, 71159), (1661, 12938), (3322, 6469)]