20841856

素因数分解:

$2^7\times 7^2\times {\mathrm{3323}}^1$

素因数の和:3351

約数の個数: 48

約数和(自身を含む): 48314340

約数和(自身を除く): 27472484

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3323, 6272, 6646, 13292, 23261, 26584, 46522, 53168, 93044, 106336, 162827, 186088, 212672, 325654, 372176, 425344, 651308, 744352, 1302616, 1488704, 2605232, 2977408, 5210464, 10420928, 20841856]

約数ペア:

[(1, 20841856), (2, 10420928), (4, 5210464), (7, 2977408), (8, 2605232), (14, 1488704), (16, 1302616), (28, 744352), (32, 651308), (49, 425344), (56, 372176), (64, 325654), (98, 212672), (112, 186088), (128, 162827), (196, 106336), (224, 93044), (392, 53168), (448, 46522), (784, 26584), (896, 23261), (1568, 13292), (3136, 6646), (3323, 6272)]