28287609

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 47155200

約数和(自身を除く): 18867591

約数列:

[1, 3, 7, 17, 21, 51, 59, 79, 119, 177, 237, 289, 357, 413, 553, 867, 1003, 1239, 1343, 1659, 2023, 3009, 4029, 4661, 6069, 7021, 9401, 13983, 17051, 21063, 22831, 28203, 32627, 51153, 68493, 79237, 97881, 119357, 159817, 237711, 358071, 479451, 554659, 1347029, 1663977, 4041087, 9429203, 28287609]

約数ペア:

[(1, 28287609), (3, 9429203), (7, 4041087), (17, 1663977), (21, 1347029), (51, 554659), (59, 479451), (79, 358071), (119, 237711), (177, 159817), (237, 119357), (289, 97881), (357, 79237), (413, 68493), (553, 51153), (867, 32627), (1003, 28203), (1239, 22831), (1343, 21063), (1659, 17051), (2023, 13983), (3009, 9401), (4029, 7021), (4661, 6069)]