19919216

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5209}}^1$

素因数の和:5456

約数の個数: 20

約数和(自身を含む): 38762400

約数和(自身を除く): 18843184

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5209, 10418, 20836, 41672, 83344, 1244951, 2489902, 4979804, 9959608, 19919216]

約数ペア:

[(1, 19919216), (2, 9959608), (4, 4979804), (8, 2489902), (16, 1244951), (239, 83344), (478, 41672), (956, 20836), (1912, 10418), (3824, 5209)]