28133973

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^2\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 60

約数和(自身を含む): 50587680

約数和(自身を除く): 22453707

約数列:

[1, 3, 7, 9, 21, 27, 29, 59, 63, 81, 87, 177, 189, 203, 261, 413, 531, 567, 609, 783, 841, 1239, 1593, 1711, 1827, 2349, 2523, 3717, 4779, 5133, 5481, 5887, 7569, 11151, 11977, 15399, 16443, 17661, 22707, 33453, 35931, 46197, 49619, 52983, 68121, 107793, 138591, 148857, 158949, 323379, 347333, 446571, 476847, 970137, 1041999, 1339713, 3125997, 4019139, 9377991, 28133973]

約数ペア:

[(1, 28133973), (3, 9377991), (7, 4019139), (9, 3125997), (21, 1339713), (27, 1041999), (29, 970137), (59, 476847), (63, 446571), (81, 347333), (87, 323379), (177, 158949), (189, 148857), (203, 138591), (261, 107793), (413, 68121), (531, 52983), (567, 49619), (609, 46197), (783, 35931), (841, 33453), (1239, 22707), (1593, 17661), (1711, 16443), (1827, 15399), (2349, 11977), (2523, 11151), (3717, 7569), (4779, 5887), (5133, 5481)]