18738505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2477}}^1$

素因数の和:2588

約数の個数: 16

約数和(自身を含む): 24086160

約数和(自身を除く): 5347655

約数列:

[1, 5, 17, 85, 89, 445, 1513, 2477, 7565, 12385, 42109, 210545, 220453, 1102265, 3747701, 18738505]

約数ペア:

[(1, 18738505), (5, 3747701), (17, 1102265), (85, 220453), (89, 210545), (445, 42109), (1513, 12385), (2477, 7565)]