30995973

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 21535227

約数列:

[1, 3, 9, 19, 23, 27, 37, 57, 69, 71, 111, 171, 207, 213, 333, 437, 513, 621, 639, 703, 851, 999, 1311, 1349, 1633, 1917, 2109, 2553, 2627, 3933, 4047, 4899, 6327, 7659, 7881, 11799, 12141, 14697, 16169, 18981, 22977, 23643, 31027, 36423, 44091, 48507, 49913, 60421, 70929, 93081, 145521, 149739, 181263, 279243, 436563, 449217, 543789, 837729, 1147999, 1347651, 1631367, 3443997, 10331991, 30995973]

約数ペア:

[(1, 30995973), (3, 10331991), (9, 3443997), (19, 1631367), (23, 1347651), (27, 1147999), (37, 837729), (57, 543789), (69, 449217), (71, 436563), (111, 279243), (171, 181263), (207, 149739), (213, 145521), (333, 93081), (437, 70929), (513, 60421), (621, 49913), (639, 48507), (703, 44091), (851, 36423), (999, 31027), (1311, 23643), (1349, 22977), (1633, 18981), (1917, 16169), (2109, 14697), (2553, 12141), (2627, 11799), (3933, 7881), (4047, 7659), (4899, 6327)]