21000746715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1516847}}^1$

素因数の和:1516939

約数の個数: 32

約数和(自身を含む): 36695586816

約数和(自身を除く): 15694840101

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 2769, 4615, 13845, 1516847, 4550541, 7584235, 19719011, 22752705, 59157033, 98595055, 107696137, 295785165, 323088411, 538480685, 1400049781, 1615442055, 4200149343, 7000248905, 21000746715]

約数ペア:

[(1, 21000746715), (3, 7000248905), (5, 4200149343), (13, 1615442055), (15, 1400049781), (39, 538480685), (65, 323088411), (71, 295785165), (195, 107696137), (213, 98595055), (355, 59157033), (923, 22752705), (1065, 19719011), (2769, 7584235), (4615, 4550541), (13845, 1516847)]