28082817

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 22461183

約数列:

[1, 3, 7, 9, 19, 21, 29, 57, 63, 87, 133, 171, 203, 261, 399, 551, 609, 809, 1197, 1653, 1827, 2427, 3857, 4959, 5663, 7281, 11571, 15371, 16989, 23461, 34713, 46113, 50967, 70383, 107597, 138339, 164227, 211149, 322791, 445759, 492681, 968373, 1337277, 1478043, 3120313, 4011831, 9360939, 28082817]

約数ペア:

[(1, 28082817), (3, 9360939), (7, 4011831), (9, 3120313), (19, 1478043), (21, 1337277), (29, 968373), (57, 492681), (63, 445759), (87, 322791), (133, 211149), (171, 164227), (203, 138339), (261, 107597), (399, 70383), (551, 50967), (609, 46113), (809, 34713), (1197, 23461), (1653, 16989), (1827, 15371), (2427, 11571), (3857, 7281), (4959, 5663)]