28898373

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 50135040

約数和(自身を除く): 21236667

約数列:

[1, 3, 7, 19, 21, 23, 47, 57, 67, 69, 133, 141, 161, 201, 329, 399, 437, 469, 483, 893, 987, 1081, 1273, 1311, 1407, 1541, 2679, 3059, 3149, 3243, 3819, 4623, 6251, 7567, 8911, 9177, 9447, 10787, 18753, 20539, 22043, 22701, 26733, 29279, 32361, 59831, 61617, 66129, 72427, 87837, 143773, 179493, 204953, 217281, 418817, 431319, 506989, 614859, 1256451, 1376113, 1520967, 4128339, 9632791, 28898373]

約数ペア:

[(1, 28898373), (3, 9632791), (7, 4128339), (19, 1520967), (21, 1376113), (23, 1256451), (47, 614859), (57, 506989), (67, 431319), (69, 418817), (133, 217281), (141, 204953), (161, 179493), (201, 143773), (329, 87837), (399, 72427), (437, 66129), (469, 61617), (483, 59831), (893, 32361), (987, 29279), (1081, 26733), (1273, 22701), (1311, 22043), (1407, 20539), (1541, 18753), (2679, 10787), (3059, 9447), (3149, 9177), (3243, 8911), (3819, 7567), (4623, 6251)]