21519367048

素因数分解:

$2^3\times {\mathrm{1231}}^1\times {\mathrm{2185151}}^1$

素因数の和:2186388

約数の個数: 16

約数和(自身を含む): 40381608960

約数和(自身を除く): 18862241912

約数列:

[1, 2, 4, 8, 1231, 2462, 4924, 9848, 2185151, 4370302, 8740604, 17481208, 2689920881, 5379841762, 10759683524, 21519367048]

約数ペア:

[(1, 21519367048), (2, 10759683524), (4, 5379841762), (8, 2689920881), (1231, 17481208), (2462, 8740604), (4924, 4370302), (9848, 2185151)]