21053278

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{1409}}^1$

素因数の和:1683

約数の個数: 16

約数和(自身を含む): 32757120

約数和(自身を除く): 11703842

約数列:

[1, 2, 31, 62, 241, 482, 1409, 2818, 7471, 14942, 43679, 87358, 339569, 679138, 10526639, 21053278]

約数ペア:

[(1, 21053278), (2, 10526639), (31, 679138), (62, 339569), (241, 87358), (482, 43679), (1409, 14942), (2818, 7471)]