64721961

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{8053}}^1$

素因数の和:8125

約数の個数: 24

約数和(自身を含む): 100513920

約数和(自身を除く): 35791959

約数列:

[1, 3, 9, 19, 47, 57, 141, 171, 423, 893, 2679, 8037, 8053, 24159, 72477, 153007, 378491, 459021, 1135473, 1377063, 3406419, 7191329, 21573987, 64721961]

約数ペア:

[(1, 64721961), (3, 21573987), (9, 7191329), (19, 3406419), (47, 1377063), (57, 1135473), (141, 459021), (171, 378491), (423, 153007), (893, 72477), (2679, 24159), (8037, 8053)]