28988487

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 20432313

約数列:

[1, 3, 9, 11, 23, 29, 33, 69, 87, 99, 207, 253, 261, 319, 439, 667, 759, 957, 1317, 2001, 2277, 2871, 3951, 4829, 6003, 7337, 10097, 12731, 14487, 22011, 30291, 38193, 43461, 66033, 90873, 111067, 114579, 140041, 292813, 333201, 420123, 878439, 999603, 1260369, 2635317, 3220943, 9662829, 28988487]

約数ペア:

[(1, 28988487), (3, 9662829), (9, 3220943), (11, 2635317), (23, 1260369), (29, 999603), (33, 878439), (69, 420123), (87, 333201), (99, 292813), (207, 140041), (253, 114579), (261, 111067), (319, 90873), (439, 66033), (667, 43461), (759, 38193), (957, 30291), (1317, 22011), (2001, 14487), (2277, 12731), (2871, 10097), (3951, 7337), (4829, 6003)]