20618838

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{60289}}^1$

素因数の和:60316

約数の個数: 24

約数和(自身を含む): 47026200

約数和(自身を除く): 26407362

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 60289, 120578, 180867, 361734, 542601, 1085202, 1145491, 2290982, 3436473, 6872946, 10309419, 20618838]

約数ペア:

[(1, 20618838), (2, 10309419), (3, 6872946), (6, 3436473), (9, 2290982), (18, 1145491), (19, 1085202), (38, 542601), (57, 361734), (114, 180867), (171, 120578), (342, 60289)]