19408221

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3541}}^1$

素因数の和:3586

約数の個数: 32

約数和(自身を含む): 34003200

約数和(自身を除く): 14594979

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3541, 5481, 10623, 24787, 31869, 74361, 95607, 102689, 223083, 308067, 669249, 718823, 924201, 2156469, 2772603, 6469407, 19408221]

約数ペア:

[(1, 19408221), (3, 6469407), (7, 2772603), (9, 2156469), (21, 924201), (27, 718823), (29, 669249), (63, 308067), (87, 223083), (189, 102689), (203, 95607), (261, 74361), (609, 31869), (783, 24787), (1827, 10623), (3541, 5481)]