18699604

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 22547756

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 109, 154, 218, 308, 436, 557, 763, 1114, 1199, 1526, 2228, 2398, 3052, 3899, 4796, 6127, 7798, 8393, 12254, 15596, 16786, 24508, 33572, 42889, 60713, 85778, 121426, 171556, 242852, 424991, 667843, 849982, 1335686, 1699964, 2671372, 4674901, 9349802, 18699604]

約数ペア:

[(1, 18699604), (2, 9349802), (4, 4674901), (7, 2671372), (11, 1699964), (14, 1335686), (22, 849982), (28, 667843), (44, 424991), (77, 242852), (109, 171556), (154, 121426), (218, 85778), (308, 60713), (436, 42889), (557, 33572), (763, 24508), (1114, 16786), (1199, 15596), (1526, 12254), (2228, 8393), (2398, 7798), (3052, 6127), (3899, 4796)]