1901478957

素因数分解:

$3^1\times 7^2\times {\mathrm{643}}^1\times {\mathrm{20117}}^1$

素因数の和:20777

約数の個数: 24

約数和(自身を含む): 2953966176

約数和(自身を除く): 1052487219

約数列:

[1, 3, 7, 21, 49, 147, 643, 1929, 4501, 13503, 20117, 31507, 60351, 94521, 140819, 422457, 985733, 2957199, 12935231, 38805693, 90546617, 271639851, 633826319, 1901478957]

約数ペア:

[(1, 1901478957), (3, 633826319), (7, 271639851), (21, 90546617), (49, 38805693), (147, 12935231), (643, 2957199), (1929, 985733), (4501, 422457), (13503, 140819), (20117, 94521), (31507, 60351)]