221954568

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1997}}^1$

素因数の和:2438

約数の個数: 64

約数和(自身を含む): 607072320

約数和(自身を除く): 385117752

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264, 421, 842, 1263, 1684, 1997, 2526, 3368, 3994, 4631, 5052, 5991, 7988, 9262, 10104, 11982, 13893, 15976, 18524, 21967, 23964, 27786, 37048, 43934, 47928, 55572, 65901, 87868, 111144, 131802, 175736, 263604, 527208, 840737, 1681474, 2522211, 3362948, 5044422, 6725896, 9248107, 10088844, 18496214, 20177688, 27744321, 36992428, 55488642, 73984856, 110977284, 221954568]

約数ペア:

[(1, 221954568), (2, 110977284), (3, 73984856), (4, 55488642), (6, 36992428), (8, 27744321), (11, 20177688), (12, 18496214), (22, 10088844), (24, 9248107), (33, 6725896), (44, 5044422), (66, 3362948), (88, 2522211), (132, 1681474), (264, 840737), (421, 527208), (842, 263604), (1263, 175736), (1684, 131802), (1997, 111144), (2526, 87868), (3368, 65901), (3994, 55572), (4631, 47928), (5052, 43934), (5991, 37048), (7988, 27786), (9262, 23964), (10104, 21967), (11982, 18524), (13893, 15976)]