19317904

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2459}}^1$

素因数の和:2958

約数の個数: 20

約数和(自身を含む): 37519920

約数和(自身を除く): 18202016

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2459, 3928, 4918, 7856, 9836, 19672, 39344, 1207369, 2414738, 4829476, 9658952, 19317904]

約数ペア:

[(1, 19317904), (2, 9658952), (4, 4829476), (8, 2414738), (16, 1207369), (491, 39344), (982, 19672), (1964, 9836), (2459, 7856), (3928, 4918)]