19915672

素因数分解:

$2^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1553}}^1$

素因数の和:1795

約数の個数: 32

約数和(自身を含む): 42890400

約数和(自身を除く): 22974728

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 229, 458, 916, 1553, 1603, 1832, 3106, 3206, 6212, 6412, 10871, 12424, 12824, 21742, 43484, 86968, 355637, 711274, 1422548, 2489459, 2845096, 4978918, 9957836, 19915672]

約数ペア:

[(1, 19915672), (2, 9957836), (4, 4978918), (7, 2845096), (8, 2489459), (14, 1422548), (28, 711274), (56, 355637), (229, 86968), (458, 43484), (916, 21742), (1553, 12824), (1603, 12424), (1832, 10871), (3106, 6412), (3206, 6212)]