21487160690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52407709}}^1$

素因数の和:52407757

約数の個数: 16

約数和(自身を含む): 39620228760

約数和(自身を除く): 18133068070

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52407709, 104815418, 262038545, 524077090, 2148716069, 4297432138, 10743580345, 21487160690]

約数ペア:

[(1, 21487160690), (2, 10743580345), (5, 4297432138), (10, 2148716069), (41, 524077090), (82, 262038545), (205, 104815418), (410, 52407709)]