21088676

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12347}}^1$

素因数の和:12419

約数の個数: 24

約数和(自身を含む): 42872256

約数和(自身を除く): 21783580

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12347, 24694, 49388, 86429, 172858, 345716, 753167, 1506334, 3012668, 5272169, 10544338, 21088676]

約数ペア:

[(1, 21088676), (2, 10544338), (4, 5272169), (7, 3012668), (14, 1506334), (28, 753167), (61, 345716), (122, 172858), (244, 86429), (427, 49388), (854, 24694), (1708, 12347)]