18989404

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{8171}}^1$

素因数の和:8265

約数の個数: 24

約数和(自身を含む): 38441088

約数和(自身を除く): 19451684

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 8171, 16342, 32684, 57197, 114394, 228788, 678193, 1356386, 2712772, 4747351, 9494702, 18989404]

約数ペア:

[(1, 18989404), (2, 9494702), (4, 4747351), (7, 2712772), (14, 1356386), (28, 678193), (83, 228788), (166, 114394), (332, 57197), (581, 32684), (1162, 16342), (2324, 8171)]