21914672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105359}}^1$

素因数の和:105380

約数の個数: 20

約数和(自身を含む): 45726240

約数和(自身を除く): 23811568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105359, 210718, 421436, 842872, 1369667, 1685744, 2739334, 5478668, 10957336, 21914672]

約数ペア:

[(1, 21914672), (2, 10957336), (4, 5478668), (8, 2739334), (13, 1685744), (16, 1369667), (26, 842872), (52, 421436), (104, 210718), (208, 105359)]