21123704

素因数分解:

$2^3\times 7^2\times {\mathrm{53887}}^1$

素因数の和:53907

約数の個数: 24

約数和(自身を含む): 46074240

約数和(自身を除く): 24950536

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 53887, 107774, 215548, 377209, 431096, 754418, 1508836, 2640463, 3017672, 5280926, 10561852, 21123704]

約数ペア:

[(1, 21123704), (2, 10561852), (4, 5280926), (7, 3017672), (8, 2640463), (14, 1508836), (28, 754418), (49, 431096), (56, 377209), (98, 215548), (196, 107774), (392, 53887)]