201921447

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{15737}}^1$

素因数の和:15807

約数の個数: 32

約数和(自身を含む): 338429952

約数和(自身を除く): 136508505

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 4277, 12831, 15737, 47211, 110159, 204581, 330477, 613743, 739639, 1432067, 2218917, 4296201, 5177473, 9615307, 15532419, 28845921, 67307149, 201921447]

約数ペア:

[(1, 201921447), (3, 67307149), (7, 28845921), (13, 15532419), (21, 9615307), (39, 5177473), (47, 4296201), (91, 2218917), (141, 1432067), (273, 739639), (329, 613743), (611, 330477), (987, 204581), (1833, 110159), (4277, 47211), (12831, 15737)]