21808732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1373}}^1$

素因数の和:1426

約数の個数: 36

約数和(自身を含む): 43973496

約数和(自身を除く): 22164764

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 361, 418, 722, 836, 1373, 1444, 2746, 3971, 5492, 7942, 15103, 15884, 26087, 30206, 52174, 60412, 104348, 286957, 495653, 573914, 991306, 1147828, 1982612, 5452183, 10904366, 21808732]

約数ペア:

[(1, 21808732), (2, 10904366), (4, 5452183), (11, 1982612), (19, 1147828), (22, 991306), (38, 573914), (44, 495653), (76, 286957), (209, 104348), (361, 60412), (418, 52174), (722, 30206), (836, 26087), (1373, 15884), (1444, 15103), (2746, 7942), (3971, 5492)]