21697424

素因数分解:

$2^4\times 7^1\times {\mathrm{193727}}^1$

素因数の和:193742

約数の個数: 20

約数和(自身を含む): 48044544

約数和(自身を除く): 26347120

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193727, 387454, 774908, 1356089, 1549816, 2712178, 3099632, 5424356, 10848712, 21697424]

約数ペア:

[(1, 21697424), (2, 10848712), (4, 5424356), (7, 3099632), (8, 2712178), (14, 1549816), (16, 1356089), (28, 774908), (56, 387454), (112, 193727)]