18718884

素因数分解:

$2^2\times 3^3\times {\mathrm{353}}^1\times {\mathrm{491}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 48767040

約数和(自身を除く): 30048156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 353, 491, 706, 982, 1059, 1412, 1473, 1964, 2118, 2946, 3177, 4236, 4419, 5892, 6354, 8838, 9531, 12708, 13257, 17676, 19062, 26514, 38124, 53028, 173323, 346646, 519969, 693292, 1039938, 1559907, 2079876, 3119814, 4679721, 6239628, 9359442, 18718884]

約数ペア:

[(1, 18718884), (2, 9359442), (3, 6239628), (4, 4679721), (6, 3119814), (9, 2079876), (12, 1559907), (18, 1039938), (27, 693292), (36, 519969), (54, 346646), (108, 173323), (353, 53028), (491, 38124), (706, 26514), (982, 19062), (1059, 17676), (1412, 13257), (1473, 12708), (1964, 9531), (2118, 8838), (2946, 6354), (3177, 5892), (4236, 4419)]