21720456

素因数分解:

$2^3\times 3^2\times {\mathrm{301673}}^1$

素因数の和:301685

約数の個数: 24

約数和(自身を含む): 58826430

約数和(自身を除く): 37105974

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 301673, 603346, 905019, 1206692, 1810038, 2413384, 2715057, 3620076, 5430114, 7240152, 10860228, 21720456]

約数ペア:

[(1, 21720456), (2, 10860228), (3, 7240152), (4, 5430114), (6, 3620076), (8, 2715057), (9, 2413384), (12, 1810038), (18, 1206692), (24, 905019), (36, 603346), (72, 301673)]