21289856

素因数分解:

$2^7\times 7^1\times {\mathrm{23761}}^1$

素因数の和:23782

約数の個数: 32

約数和(自身を含む): 48474480

約数和(自身を除く): 27184624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896, 23761, 47522, 95044, 166327, 190088, 332654, 380176, 665308, 760352, 1330616, 1520704, 2661232, 3041408, 5322464, 10644928, 21289856]

約数ペア:

[(1, 21289856), (2, 10644928), (4, 5322464), (7, 3041408), (8, 2661232), (14, 1520704), (16, 1330616), (28, 760352), (32, 665308), (56, 380176), (64, 332654), (112, 190088), (128, 166327), (224, 95044), (448, 47522), (896, 23761)]