21059590

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25373}}^1$

素因数の和:25463

約数の個数: 16

約数和(自身を含む): 38365488

約数和(自身を除く): 17305898

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25373, 50746, 126865, 253730, 2105959, 4211918, 10529795, 21059590]

約数ペア:

[(1, 21059590), (2, 10529795), (5, 4211918), (10, 2105959), (83, 253730), (166, 126865), (415, 50746), (830, 25373)]