21551944

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 43614720

約数和(自身を除く): 22062776

約数列:

[1, 2, 4, 8, 31, 43, 47, 62, 86, 94, 124, 172, 188, 248, 344, 376, 1333, 1457, 1849, 2021, 2666, 2914, 3698, 4042, 5332, 5828, 7396, 8084, 10664, 11656, 14792, 16168, 57319, 62651, 86903, 114638, 125302, 173806, 229276, 250604, 347612, 458552, 501208, 695224, 2693993, 5387986, 10775972, 21551944]

約数ペア:

[(1, 21551944), (2, 10775972), (4, 5387986), (8, 2693993), (31, 695224), (43, 501208), (47, 458552), (62, 347612), (86, 250604), (94, 229276), (124, 173806), (172, 125302), (188, 114638), (248, 86903), (344, 62651), (376, 57319), (1333, 16168), (1457, 14792), (1849, 11656), (2021, 10664), (2666, 8084), (2914, 7396), (3698, 5828), (4042, 5332)]