20910370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12373}}^1$

素因数の和:12406

約数の個数: 24

約数和(自身を含む): 40759956

約数和(自身を除く): 19849586

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12373, 24746, 61865, 123730, 160849, 321698, 804245, 1608490, 2091037, 4182074, 10455185, 20910370]

約数ペア:

[(1, 20910370), (2, 10455185), (5, 4182074), (10, 2091037), (13, 1608490), (26, 804245), (65, 321698), (130, 160849), (169, 123730), (338, 61865), (845, 24746), (1690, 12373)]