21000304860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350005081}}^1$

素因数の和:350005093

約数の個数: 24

約数和(自身を含む): 58800853776

約数和(自身を除く): 37800548916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350005081, 700010162, 1050015243, 1400020324, 1750025405, 2100030486, 3500050810, 4200060972, 5250076215, 7000101620, 10500152430, 21000304860]

約数ペア:

[(1, 21000304860), (2, 10500152430), (3, 7000101620), (4, 5250076215), (5, 4200060972), (6, 3500050810), (10, 2100030486), (12, 1750025405), (15, 1400020324), (20, 1050015243), (30, 700010162), (60, 350005081)]