21143186855

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{823}}^1\times {\mathrm{4861}}^1$

素因数の和:5847

約数の個数: 32

約数和(自身を含む): 29229877248

約数和(自身を除く): 8086690393

約数列:

[1, 5, 7, 35, 151, 755, 823, 1057, 4115, 4861, 5285, 5761, 24305, 28805, 34027, 124273, 170135, 621365, 734011, 869911, 3670055, 4000603, 4349555, 5138077, 20003015, 25690385, 28004221, 140021105, 604091053, 3020455265, 4228637371, 21143186855]

約数ペア:

[(1, 21143186855), (5, 4228637371), (7, 3020455265), (35, 604091053), (151, 140021105), (755, 28004221), (823, 25690385), (1057, 20003015), (4115, 5138077), (4861, 4349555), (5285, 4000603), (5761, 3670055), (24305, 869911), (28805, 734011), (34027, 621365), (124273, 170135)]