18841977

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 96

約数和(自身を含む): 37739520

約数和(自身を除く): 18897543

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 53, 57, 63, 77, 81, 99, 133, 159, 171, 189, 209, 231, 243, 297, 371, 399, 477, 513, 567, 583, 627, 693, 891, 1007, 1113, 1197, 1431, 1463, 1539, 1701, 1749, 1881, 2079, 2673, 3021, 3339, 3591, 4081, 4293, 4389, 4617, 5247, 5643, 6237, 7049, 9063, 10017, 10773, 11077, 12243, 12879, 13167, 15741, 16929, 18711, 21147, 27189, 30051, 32319, 33231, 36729, 39501, 47223, 50787, 63441, 77539, 81567, 90153, 99693, 110187, 118503, 141669, 190323, 232617, 244701, 299079, 330561, 355509, 570969, 697851, 897237, 991683, 1712907, 2093553, 2691711, 6280659, 18841977]

約数ペア:

[(1, 18841977), (3, 6280659), (7, 2691711), (9, 2093553), (11, 1712907), (19, 991683), (21, 897237), (27, 697851), (33, 570969), (53, 355509), (57, 330561), (63, 299079), (77, 244701), (81, 232617), (99, 190323), (133, 141669), (159, 118503), (171, 110187), (189, 99693), (209, 90153), (231, 81567), (243, 77539), (297, 63441), (371, 50787), (399, 47223), (477, 39501), (513, 36729), (567, 33231), (583, 32319), (627, 30051), (693, 27189), (891, 21147), (1007, 18711), (1113, 16929), (1197, 15741), (1431, 13167), (1463, 12879), (1539, 12243), (1701, 11077), (1749, 10773), (1881, 10017), (2079, 9063), (2673, 7049), (3021, 6237), (3339, 5643), (3591, 5247), (4081, 4617), (4293, 4389)]