21456057

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{60101}}^1$

素因数の和:60128

約数の個数: 16

約数和(自身を含む): 34618752

約数和(自身を除く): 13162695

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 60101, 180303, 420707, 1021717, 1262121, 3065151, 7152019, 21456057]

約数ペア:

[(1, 21456057), (3, 7152019), (7, 3065151), (17, 1262121), (21, 1021717), (51, 420707), (119, 180303), (357, 60101)]