20054979

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3659}}^1$

素因数の和:3704

約数の個数: 32

約数和(自身を含む): 35136000

約数和(自身を除く): 15081021

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3659, 5481, 10977, 25613, 32931, 76839, 98793, 106111, 230517, 318333, 691551, 742777, 954999, 2228331, 2864997, 6684993, 20054979]

約数ペア:

[(1, 20054979), (3, 6684993), (7, 2864997), (9, 2228331), (21, 954999), (27, 742777), (29, 691551), (63, 318333), (87, 230517), (189, 106111), (203, 98793), (261, 76839), (609, 32931), (783, 25613), (1827, 10977), (3659, 5481)]