20565531441

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{44131}}^1$

素因数の和:44726

約数の個数: 48

約数和(自身を含む): 36626029440

約数和(自身を除く): 16060497999

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 569, 819, 1707, 3983, 5121, 7397, 11949, 22191, 35847, 44131, 51779, 66573, 132393, 155337, 308917, 397179, 466011, 573703, 926751, 1721109, 2780253, 4015921, 5163327, 12047763, 25110539, 36143289, 75331617, 175773773, 225994851, 326437007, 527321319, 979311021, 1581963957, 2285059049, 2937933063, 6855177147, 20565531441]

約数ペア:

[(1, 20565531441), (3, 6855177147), (7, 2937933063), (9, 2285059049), (13, 1581963957), (21, 979311021), (39, 527321319), (63, 326437007), (91, 225994851), (117, 175773773), (273, 75331617), (569, 36143289), (819, 25110539), (1707, 12047763), (3983, 5163327), (5121, 4015921), (7397, 2780253), (11949, 1721109), (22191, 926751), (35847, 573703), (44131, 466011), (51779, 397179), (66573, 308917), (132393, 155337)]