21200485

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5443}}^1$

素因数の和:5508

約数の個数: 16

約数和(自身を含む): 27437760

約数和(自身を除く): 6237275

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 5443, 27215, 103417, 223163, 517085, 1115815, 4240097, 21200485]

約数ペア:

[(1, 21200485), (5, 4240097), (19, 1115815), (41, 517085), (95, 223163), (205, 103417), (779, 27215), (3895, 5443)]