21931408

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7573}}^1$

素因数の和:7762

約数の個数: 20

約数和(自身を含む): 42732508

約数和(自身を除く): 20801100

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7573, 15146, 30292, 60584, 121168, 1370713, 2741426, 5482852, 10965704, 21931408]

約数ペア:

[(1, 21931408), (2, 10965704), (4, 5482852), (8, 2741426), (16, 1370713), (181, 121168), (362, 60584), (724, 30292), (1448, 15146), (2896, 7573)]