21661696

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1511}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 27871424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1511, 1792, 2048, 3022, 3584, 6044, 7168, 10577, 12088, 14336, 21154, 24176, 42308, 48352, 84616, 96704, 169232, 193408, 338464, 386816, 676928, 773632, 1353856, 1547264, 2707712, 3094528, 5415424, 10830848, 21661696]

約数ペア:

[(1, 21661696), (2, 10830848), (4, 5415424), (7, 3094528), (8, 2707712), (14, 1547264), (16, 1353856), (28, 773632), (32, 676928), (56, 386816), (64, 338464), (112, 193408), (128, 169232), (224, 96704), (256, 84616), (448, 48352), (512, 42308), (896, 24176), (1024, 21154), (1511, 14336), (1792, 12088), (2048, 10577), (3022, 7168), (3584, 6044)]