21551595

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1399}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 37632000

約数和(自身を除く): 16080405

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 1399, 3081, 4197, 5135, 6995, 15405, 18187, 20985, 54561, 90935, 110521, 272805, 331563, 552605, 1436773, 1657815, 4310319, 7183865, 21551595]

約数ペア:

[(1, 21551595), (3, 7183865), (5, 4310319), (13, 1657815), (15, 1436773), (39, 552605), (65, 331563), (79, 272805), (195, 110521), (237, 90935), (395, 54561), (1027, 20985), (1185, 18187), (1399, 15405), (3081, 6995), (4197, 5135)]