21218784

素因数分解:

$2^5\times 3^1\times {\mathrm{83}}^1\times {\mathrm{2663}}^1$

素因数の和:2759

約数の個数: 48

約数和(自身を含む): 56391552

約数和(自身を除く): 35172768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 83, 96, 166, 249, 332, 498, 664, 996, 1328, 1992, 2656, 2663, 3984, 5326, 7968, 7989, 10652, 15978, 21304, 31956, 42608, 63912, 85216, 127824, 221029, 255648, 442058, 663087, 884116, 1326174, 1768232, 2652348, 3536464, 5304696, 7072928, 10609392, 21218784]

約数ペア:

[(1, 21218784), (2, 10609392), (3, 7072928), (4, 5304696), (6, 3536464), (8, 2652348), (12, 1768232), (16, 1326174), (24, 884116), (32, 663087), (48, 442058), (83, 255648), (96, 221029), (166, 127824), (249, 85216), (332, 63912), (498, 42608), (664, 31956), (996, 21304), (1328, 15978), (1992, 10652), (2656, 7989), (2663, 7968), (3984, 5326)]