18964456

素因数分解:

$2^3\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1871}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 40884480

約数和(自身を除く): 21920024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 181, 362, 724, 1267, 1448, 1871, 2534, 3742, 5068, 7484, 10136, 13097, 14968, 26194, 52388, 104776, 338651, 677302, 1354604, 2370557, 2709208, 4741114, 9482228, 18964456]

約数ペア:

[(1, 18964456), (2, 9482228), (4, 4741114), (7, 2709208), (8, 2370557), (14, 1354604), (28, 677302), (56, 338651), (181, 104776), (362, 52388), (724, 26194), (1267, 14968), (1448, 13097), (1871, 10136), (2534, 7484), (3742, 5068)]