21557248

素因数分解:

$2^{12}\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:320

約数の個数: 52

約数和(自身を含む): 45541960

約数和(自身を除く): 23984712

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 277, 304, 512, 554, 608, 1024, 1108, 1216, 2048, 2216, 2432, 4096, 4432, 4864, 5263, 8864, 9728, 10526, 17728, 19456, 21052, 35456, 38912, 42104, 70912, 77824, 84208, 141824, 168416, 283648, 336832, 567296, 673664, 1134592, 1347328, 2694656, 5389312, 10778624, 21557248]

約数ペア:

[(1, 21557248), (2, 10778624), (4, 5389312), (8, 2694656), (16, 1347328), (19, 1134592), (32, 673664), (38, 567296), (64, 336832), (76, 283648), (128, 168416), (152, 141824), (256, 84208), (277, 77824), (304, 70912), (512, 42104), (554, 38912), (608, 35456), (1024, 21052), (1108, 19456), (1216, 17728), (2048, 10526), (2216, 9728), (2432, 8864), (4096, 5263), (4432, 4864)]