21554428

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2927}}^1$

素因数の和:3201

約数の個数: 24

約数和(自身を含む): 43287552

約数和(自身を除く): 21733124

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 2927, 3682, 5854, 7364, 11708, 20489, 40978, 81956, 769801, 1539602, 3079204, 5388607, 10777214, 21554428]

約数ペア:

[(1, 21554428), (2, 10777214), (4, 5388607), (7, 3079204), (14, 1539602), (28, 769801), (263, 81956), (526, 40978), (1052, 20489), (1841, 11708), (2927, 7364), (3682, 5854)]