21821480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23719}}^1$

素因数の和:23753

約数の個数: 32

約数和(自身を含む): 51235200

約数和(自身を除く): 29413720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23719, 47438, 94876, 118595, 189752, 237190, 474380, 545537, 948760, 1091074, 2182148, 2727685, 4364296, 5455370, 10910740, 21821480]

約数ペア:

[(1, 21821480), (2, 10910740), (4, 5455370), (5, 4364296), (8, 2727685), (10, 2182148), (20, 1091074), (23, 948760), (40, 545537), (46, 474380), (92, 237190), (115, 189752), (184, 118595), (230, 94876), (460, 47438), (920, 23719)]