20720904

素因数分解:

$2^3\times 3^1\times {\mathrm{73}}^1\times {\mathrm{11827}}^1$

素因数の和:11909

約数の個数: 32

約数和(自身を含む): 52516320

約数和(自身を除く): 31795416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 73, 146, 219, 292, 438, 584, 876, 1752, 11827, 23654, 35481, 47308, 70962, 94616, 141924, 283848, 863371, 1726742, 2590113, 3453484, 5180226, 6906968, 10360452, 20720904]

約数ペア:

[(1, 20720904), (2, 10360452), (3, 6906968), (4, 5180226), (6, 3453484), (8, 2590113), (12, 1726742), (24, 863371), (73, 283848), (146, 141924), (219, 94616), (292, 70962), (438, 47308), (584, 35481), (876, 23654), (1752, 11827)]