219969981

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 407324736

約数和(自身を除く): 187354755

約数列:

[1, 3, 7, 9, 11, 21, 33, 53, 63, 77, 99, 113, 159, 231, 339, 371, 477, 583, 693, 791, 1017, 1113, 1243, 1749, 2373, 2809, 3339, 3729, 4081, 5247, 5989, 7119, 8427, 8701, 11187, 12243, 17967, 19663, 25281, 26103, 30899, 36729, 41923, 53901, 58989, 65879, 78309, 92697, 125769, 176967, 197637, 216293, 278091, 317417, 377307, 461153, 592911, 648879, 952251, 1383459, 1946637, 2221919, 2856753, 3491587, 4150377, 6665757, 10474761, 19997271, 24441109, 31424283, 73323327, 219969981]

約数ペア:

[(1, 219969981), (3, 73323327), (7, 31424283), (9, 24441109), (11, 19997271), (21, 10474761), (33, 6665757), (53, 4150377), (63, 3491587), (77, 2856753), (99, 2221919), (113, 1946637), (159, 1383459), (231, 952251), (339, 648879), (371, 592911), (477, 461153), (583, 377307), (693, 317417), (791, 278091), (1017, 216293), (1113, 197637), (1243, 176967), (1749, 125769), (2373, 92697), (2809, 78309), (3339, 65879), (3729, 58989), (4081, 53901), (5247, 41923), (5989, 36729), (7119, 30899), (8427, 26103), (8701, 25281), (11187, 19663), (12243, 17967)]