19927792

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40177}}^1$

素因数の和:40216

約数の個数: 20

約数和(自身を含む): 39856576

約数和(自身を除く): 19928784

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40177, 80354, 160708, 321416, 642832, 1245487, 2490974, 4981948, 9963896, 19927792]

約数ペア:

[(1, 19927792), (2, 9963896), (4, 4981948), (8, 2490974), (16, 1245487), (31, 642832), (62, 321416), (124, 160708), (248, 80354), (496, 40177)]