209218542

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{6689}}^1$

素因数の和:7108

約数の個数: 32

約数和(自身を含む): 451815840

約数和(自身を除く): 242597298

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 401, 802, 1203, 2406, 5213, 6689, 10426, 13378, 15639, 20067, 31278, 40134, 86957, 173914, 260871, 521742, 2682289, 5364578, 8046867, 16093734, 34869757, 69739514, 104609271, 209218542]

約数ペア:

[(1, 209218542), (2, 104609271), (3, 69739514), (6, 34869757), (13, 16093734), (26, 8046867), (39, 5364578), (78, 2682289), (401, 521742), (802, 260871), (1203, 173914), (2406, 86957), (5213, 40134), (6689, 31278), (10426, 20067), (13378, 15639)]