18180986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 30077760

約数和(自身を除く): 11896774

約数列:

[1, 2, 19, 37, 38, 67, 74, 134, 193, 386, 703, 1273, 1406, 2479, 2546, 3667, 4958, 7141, 7334, 12931, 14282, 25862, 47101, 94202, 135679, 245689, 271358, 478447, 491378, 956894, 9090493, 18180986]

約数ペア:

[(1, 18180986), (2, 9090493), (19, 956894), (37, 491378), (38, 478447), (67, 271358), (74, 245689), (134, 135679), (193, 94202), (386, 47101), (703, 25862), (1273, 14282), (1406, 12931), (2479, 7334), (2546, 7141), (3667, 4958)]