6991299

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 12026880

約数和(自身を除く): 5035581

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 521, 639, 1491, 1563, 1917, 3647, 4473, 4689, 10941, 13419, 14067, 32823, 36991, 98469, 110973, 258937, 332919, 776811, 998757, 2330433, 6991299]

約数ペア:

[(1, 6991299), (3, 2330433), (7, 998757), (9, 776811), (21, 332919), (27, 258937), (63, 110973), (71, 98469), (189, 36991), (213, 32823), (497, 14067), (521, 13419), (639, 10941), (1491, 4689), (1563, 4473), (1917, 3647)]