20549452

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 45255168

約数和(自身を除く): 24705716

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 137, 154, 274, 308, 487, 548, 959, 974, 1507, 1918, 1948, 3014, 3409, 3836, 5357, 6028, 6818, 10549, 10714, 13636, 21098, 21428, 37499, 42196, 66719, 74998, 133438, 149996, 266876, 467033, 733909, 934066, 1467818, 1868132, 2935636, 5137363, 10274726, 20549452]

約数ペア:

[(1, 20549452), (2, 10274726), (4, 5137363), (7, 2935636), (11, 1868132), (14, 1467818), (22, 934066), (28, 733909), (44, 467033), (77, 266876), (137, 149996), (154, 133438), (274, 74998), (308, 66719), (487, 42196), (548, 37499), (959, 21428), (974, 21098), (1507, 13636), (1918, 10714), (1948, 10549), (3014, 6818), (3409, 6028), (3836, 5357)]