21109016

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1811}}^1$

素因数の和:1895

約数の個数: 32

約数和(自身を含む): 41748480

約数和(自身を除く): 20639464

約数列:

[1, 2, 4, 8, 31, 47, 62, 94, 124, 188, 248, 376, 1457, 1811, 2914, 3622, 5828, 7244, 11656, 14488, 56141, 85117, 112282, 170234, 224564, 340468, 449128, 680936, 2638627, 5277254, 10554508, 21109016]

約数ペア:

[(1, 21109016), (2, 10554508), (4, 5277254), (8, 2638627), (31, 680936), (47, 449128), (62, 340468), (94, 224564), (124, 170234), (188, 112282), (248, 85117), (376, 56141), (1457, 14488), (1811, 11656), (2914, 7244), (3622, 5828)]