21756976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71569}}^1$

素因数の和:71596

約数の個数: 20

約数和(自身を含む): 44373400

約数和(自身を除く): 22616424

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71569, 143138, 286276, 572552, 1145104, 1359811, 2719622, 5439244, 10878488, 21756976]

約数ペア:

[(1, 21756976), (2, 10878488), (4, 5439244), (8, 2719622), (16, 1359811), (19, 1145104), (38, 572552), (76, 286276), (152, 143138), (304, 71569)]