638886438

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{7103}}^1$

素因数の和:7393

約数の個数: 48

約数和(自身を含む): 1462855680

約数和(自身を除く): 823969242

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 263, 342, 526, 789, 1578, 2367, 4734, 4997, 7103, 9994, 14206, 14991, 21309, 29982, 42618, 44973, 63927, 89946, 127854, 134957, 269914, 404871, 809742, 1214613, 1868089, 2429226, 3736178, 5604267, 11208534, 16812801, 33625602, 35493691, 70987382, 106481073, 212962146, 319443219, 638886438]

約数ペア:

[(1, 638886438), (2, 319443219), (3, 212962146), (6, 106481073), (9, 70987382), (18, 35493691), (19, 33625602), (38, 16812801), (57, 11208534), (114, 5604267), (171, 3736178), (263, 2429226), (342, 1868089), (526, 1214613), (789, 809742), (1578, 404871), (2367, 269914), (4734, 134957), (4997, 127854), (7103, 89946), (9994, 63927), (14206, 44973), (14991, 42618), (21309, 29982)]