9978628

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:468

約数の個数: 36

約数和(自身を含む): 19606860

約数和(自身を除く): 9628232

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 121, 212, 242, 389, 484, 583, 778, 1166, 1556, 2332, 4279, 6413, 8558, 12826, 17116, 20617, 25652, 41234, 47069, 82468, 94138, 188276, 226787, 453574, 907148, 2494657, 4989314, 9978628]

約数ペア:

[(1, 9978628), (2, 4989314), (4, 2494657), (11, 907148), (22, 453574), (44, 226787), (53, 188276), (106, 94138), (121, 82468), (212, 47069), (242, 41234), (389, 25652), (484, 20617), (583, 17116), (778, 12826), (1166, 8558), (1556, 6413), (2332, 4279)]