21587984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5333}}^1$

素因数の和:5375

約数の個数: 40

約数和(自身を含む): 47621952

約数和(自身を除く): 26033968

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 5333, 10666, 21332, 42664, 58663, 85328, 117326, 122659, 234652, 245318, 469304, 490636, 938608, 981272, 1349249, 1962544, 2698498, 5396996, 10793992, 21587984]

約数ペア:

[(1, 21587984), (2, 10793992), (4, 5396996), (8, 2698498), (11, 1962544), (16, 1349249), (22, 981272), (23, 938608), (44, 490636), (46, 469304), (88, 245318), (92, 234652), (176, 122659), (184, 117326), (253, 85328), (368, 58663), (506, 42664), (1012, 21332), (2024, 10666), (4048, 5333)]