20971832

素因数分解:

$2^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1901}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 45191520

約数和(自身を除く): 24219688

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 197, 394, 788, 1379, 1576, 1901, 2758, 3802, 5516, 7604, 11032, 13307, 15208, 26614, 53228, 106456, 374497, 748994, 1497988, 2621479, 2995976, 5242958, 10485916, 20971832]

約数ペア:

[(1, 20971832), (2, 10485916), (4, 5242958), (7, 2995976), (8, 2621479), (14, 1497988), (28, 748994), (56, 374497), (197, 106456), (394, 53228), (788, 26614), (1379, 15208), (1576, 13307), (1901, 11032), (2758, 7604), (3802, 5516)]