18987612

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{11897}}^1$

素因数の和:11930

約数の個数: 48

約数和(自身を含む): 53303040

約数和(自身を除く): 34315428

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 399, 532, 798, 1596, 11897, 23794, 35691, 47588, 71382, 83279, 142764, 166558, 226043, 249837, 333116, 452086, 499674, 678129, 904172, 999348, 1356258, 1582301, 2712516, 3164602, 4746903, 6329204, 9493806, 18987612]

約数ペア:

[(1, 18987612), (2, 9493806), (3, 6329204), (4, 4746903), (6, 3164602), (7, 2712516), (12, 1582301), (14, 1356258), (19, 999348), (21, 904172), (28, 678129), (38, 499674), (42, 452086), (57, 333116), (76, 249837), (84, 226043), (114, 166558), (133, 142764), (228, 83279), (266, 71382), (399, 47588), (532, 35691), (798, 23794), (1596, 11897)]