1280618913

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1\times {\mathrm{1877}}^1$

素因数の和:2553

約数の個数: 32

約数和(自身を含む): 1992542976

約数和(自身を除く): 711924063

約数列:

[1, 3, 7, 21, 53, 159, 371, 613, 1113, 1839, 1877, 4291, 5631, 12873, 13139, 32489, 39417, 97467, 99481, 227423, 298443, 682269, 696367, 1150601, 2089101, 3451803, 8054207, 24162621, 60981853, 182945559, 426872971, 1280618913]

約数ペア:

[(1, 1280618913), (3, 426872971), (7, 182945559), (21, 60981853), (53, 24162621), (159, 8054207), (371, 3451803), (613, 2089101), (1113, 1150601), (1839, 696367), (1877, 682269), (4291, 298443), (5631, 227423), (12873, 99481), (13139, 97467), (32489, 39417)]