20491206

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1789}}^1$

素因数の和:1900

約数の個数: 32

約数和(自身を含む): 43303680

約数和(自身を除く): 22812474

約数列:

[1, 2, 3, 6, 23, 46, 69, 83, 138, 166, 249, 498, 1789, 1909, 3578, 3818, 5367, 5727, 10734, 11454, 41147, 82294, 123441, 148487, 246882, 296974, 445461, 890922, 3415201, 6830402, 10245603, 20491206]

約数ペア:

[(1, 20491206), (2, 10245603), (3, 6830402), (6, 3415201), (23, 890922), (46, 445461), (69, 296974), (83, 246882), (138, 148487), (166, 123441), (249, 82294), (498, 41147), (1789, 11454), (1909, 10734), (3578, 5727), (3818, 5367)]