21445545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5651}}^1$

素因数の和:5693

約数の個数: 32

約数和(自身を含む): 39066624

約数和(自身を除く): 17621079

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5651, 16953, 28255, 62161, 84765, 129973, 186483, 310805, 389919, 649865, 932415, 1429703, 1949595, 4289109, 7148515, 21445545]

約数ペア:

[(1, 21445545), (3, 7148515), (5, 4289109), (11, 1949595), (15, 1429703), (23, 932415), (33, 649865), (55, 389919), (69, 310805), (115, 186483), (165, 129973), (253, 84765), (345, 62161), (759, 28255), (1265, 16953), (3795, 5651)]