20429865

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19739}}^1$

素因数の和:19773

約数の個数: 24

約数和(自身を含む): 36953280

約数和(自身を除く): 16523415

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19739, 59217, 98695, 177651, 296085, 453997, 888255, 1361991, 2269985, 4085973, 6809955, 20429865]

約数ペア:

[(1, 20429865), (3, 6809955), (5, 4085973), (9, 2269985), (15, 1361991), (23, 888255), (45, 453997), (69, 296085), (115, 177651), (207, 98695), (345, 59217), (1035, 19739)]