28553658

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 67630080

約数和(自身を除く): 39076422

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 67, 73, 134, 139, 146, 201, 219, 278, 402, 417, 438, 469, 511, 834, 938, 973, 1022, 1407, 1533, 1946, 2814, 2919, 3066, 4891, 5838, 9313, 9782, 10147, 14673, 18626, 20294, 27939, 29346, 30441, 34237, 55878, 60882, 65191, 68474, 71029, 102711, 130382, 142058, 195573, 205422, 213087, 391146, 426174, 679849, 1359698, 2039547, 4079094, 4758943, 9517886, 14276829, 28553658]

約数ペア:

[(1, 28553658), (2, 14276829), (3, 9517886), (6, 4758943), (7, 4079094), (14, 2039547), (21, 1359698), (42, 679849), (67, 426174), (73, 391146), (134, 213087), (139, 205422), (146, 195573), (201, 142058), (219, 130382), (278, 102711), (402, 71029), (417, 68474), (438, 65191), (469, 60882), (511, 55878), (834, 34237), (938, 30441), (973, 29346), (1022, 27939), (1407, 20294), (1533, 18626), (1946, 14673), (2814, 10147), (2919, 9782), (3066, 9313), (4891, 5838)]