21719504

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 43637832

約数和(自身を除く): 21918328

約数列:

[1, 2, 4, 8, 16, 41, 82, 113, 164, 226, 293, 328, 452, 586, 656, 904, 1172, 1808, 2344, 4633, 4688, 9266, 12013, 18532, 24026, 33109, 37064, 48052, 66218, 74128, 96104, 132436, 192208, 264872, 529744, 1357469, 2714938, 5429876, 10859752, 21719504]

約数ペア:

[(1, 21719504), (2, 10859752), (4, 5429876), (8, 2714938), (16, 1357469), (41, 529744), (82, 264872), (113, 192208), (164, 132436), (226, 96104), (293, 74128), (328, 66218), (452, 48052), (586, 37064), (656, 33109), (904, 24026), (1172, 18532), (1808, 12013), (2344, 9266), (4633, 4688)]