20931968

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{5639}}^1$

素因数の和:5682

約数の個数: 32

約数和(自身を含む): 43146000

約数和(自身を除く): 22214032

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 464, 928, 1856, 3712, 5639, 11278, 22556, 45112, 90224, 163531, 180448, 327062, 360896, 654124, 721792, 1308248, 2616496, 5232992, 10465984, 20931968]

約数ペア:

[(1, 20931968), (2, 10465984), (4, 5232992), (8, 2616496), (16, 1308248), (29, 721792), (32, 654124), (58, 360896), (64, 327062), (116, 180448), (128, 163531), (232, 90224), (464, 45112), (928, 22556), (1856, 11278), (3712, 5639)]