28415871

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 47443968

約数和(自身を除く): 19028097

約数列:

[1, 3, 9, 11, 31, 33, 47, 93, 99, 141, 197, 279, 341, 423, 517, 591, 1023, 1457, 1551, 1773, 2167, 3069, 4371, 4653, 6107, 6501, 9259, 13113, 16027, 18321, 19503, 27777, 48081, 54963, 67177, 83331, 101849, 144243, 201531, 287029, 305547, 604593, 861087, 916641, 2583261, 3157319, 9471957, 28415871]

約数ペア:

[(1, 28415871), (3, 9471957), (9, 3157319), (11, 2583261), (31, 916641), (33, 861087), (47, 604593), (93, 305547), (99, 287029), (141, 201531), (197, 144243), (279, 101849), (341, 83331), (423, 67177), (517, 54963), (591, 48081), (1023, 27777), (1457, 19503), (1551, 18321), (1773, 16027), (2167, 13113), (3069, 9259), (4371, 6501), (4653, 6107)]