71780499

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2262

約数の個数: 48

約数和(自身を含む): 129409280

約数和(自身を除く): 57628781

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 243, 399, 513, 567, 1197, 1539, 1701, 2221, 3591, 4617, 6663, 10773, 15547, 19989, 32319, 42199, 46641, 59967, 126597, 139923, 179901, 295393, 379791, 419769, 539703, 886179, 1139373, 1259307, 2658537, 3418119, 3777921, 7975611, 10254357, 23926833, 71780499]

約数ペア:

[(1, 71780499), (3, 23926833), (7, 10254357), (9, 7975611), (19, 3777921), (21, 3418119), (27, 2658537), (57, 1259307), (63, 1139373), (81, 886179), (133, 539703), (171, 419769), (189, 379791), (243, 295393), (399, 179901), (513, 139923), (567, 126597), (1197, 59967), (1539, 46641), (1701, 42199), (2221, 32319), (3591, 19989), (4617, 15547), (6663, 10773)]