20980323

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8539}}^1$

素因数の和:8568

約数の個数: 32

約数和(自身を含む): 38259200

約数和(自身を除く): 17278877

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8539, 25617, 59773, 76851, 111007, 179319, 230553, 333021, 537957, 777049, 999063, 1613871, 2331147, 2997189, 6993441, 20980323]

約数ペア:

[(1, 20980323), (3, 6993441), (7, 2997189), (9, 2331147), (13, 1613871), (21, 999063), (27, 777049), (39, 537957), (63, 333021), (91, 230553), (117, 179319), (189, 111007), (273, 76851), (351, 59773), (819, 25617), (2457, 8539)]