19155812

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 37200240

約数和(自身を除く): 18044428

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 169, 172, 338, 559, 659, 676, 1118, 1318, 2236, 2636, 7267, 8567, 14534, 17134, 28337, 29068, 34268, 56674, 111371, 113348, 222742, 368381, 445484, 736762, 1473524, 4788953, 9577906, 19155812]

約数ペア:

[(1, 19155812), (2, 9577906), (4, 4788953), (13, 1473524), (26, 736762), (43, 445484), (52, 368381), (86, 222742), (169, 113348), (172, 111371), (338, 56674), (559, 34268), (659, 29068), (676, 28337), (1118, 17134), (1318, 14534), (2236, 8567), (2636, 7267)]