20726972

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23879}}^1$

素因数の和:23921

約数の個数: 24

約数和(自身を含む): 42792960

約数和(自身を除く): 22065988

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23879, 47758, 95516, 167153, 334306, 668612, 740249, 1480498, 2960996, 5181743, 10363486, 20726972]

約数ペア:

[(1, 20726972), (2, 10363486), (4, 5181743), (7, 2960996), (14, 1480498), (28, 740249), (31, 668612), (62, 334306), (124, 167153), (217, 95516), (434, 47758), (868, 23879)]